Valor’s Journey: From Injury to Ambassador

Seven years ago, Valor arrived at Denver Zoo Conservation Alliance after surviving a traumatic injury in the wild. A bald eagle from Alabama, Valor had been shot and later rehabilitated at the Southeastern Raptor Center. Although his injuries healed, the damage left his bones misaligned, meaning he could no longer fly well enough to survive on his own. Because of this, Valor came to DZCA to live under human care. 

But Valor’s transition wasn’t easy. As a wild adult eagle suddenly introduced to a new environment, Valor was understandably nervous and easily startled. Early on, even the presence of people could cause him to panic and attempt to fly away, sometimes putting himself at risk of further injury. His care team quickly realized that traditional approaches wouldn’t work. Valor needed time, choice, and a space designed entirely around his comfort and confidence. 

Over the years, our dedicated Animal Care Specialists worked patiently to learn what made Valor feel safe. He lived in several behind-the-scenes spaces as the team experimented with different setups; more room, higher perches, and multiple options for retreat. They discovered that when Valor had control over where he went and when, he made better choices and felt more secure. 

Today, Valor lives in a tall, 25-foot-high habitat, giving him the vertical space he prefers as a bird of prey. Even more importantly, he has access to a quiet indoor barn that serves as his “safe space.” Through positive reinforcement training, Valor learned that when he feels unsure, he can step inside to decompress, then return on his own terms. This approach has helped him build confidence while maintaining trust with his small, dedicated training team. 

Thanks to years of thoughtful, choice-based care, Valor has made incredible progress. He now participates in training sessions that allow guests to see a bald eagle up close while learning about his story and the species he represents. While Valor will always have a sensitive side (wagons and running guests are still suspicious, in his opinion), he continues to grow more comfortable. 

A Bald Eagle Comeback Story 

Valor’s presence at the Zoo is also a reminder of one of the most remarkable conservation success stories in North America. 

In the mid-20th century, bald eagle populations plummeted due to the widespread use of DDT, a pesticide that caused eggshell thinning and reproductive failure. Once scientists identified the cause, public action followed. DDT was banned in the United States, legal protections were strengthened, and conservation efforts took hold. 

Today, bald eagles are no longer listed as endangered, though they remain protected. Their recovery shows what’s possible when science, policy, and public support align, and why conservation efforts matter. 

Valor helps tell that story every day. As an Ambassador Animal, he allows guests to connect emotionally with a species they might otherwise only see soaring overhead. Through Valor, people can learn how human actions once harmed bald eagles and how those same actions, when guided by knowledge and care, helped bring them back. 

Why Valor Matters 

Valor can’t return to the wild, but his role is no less important. By sharing his story, he inspires curiosity, empathy, and understanding. He shows that conservation isn’t just about saving species, it’s about responsibility, second chances, and learning to do better for the wildlife we share this planet with. 

On colder days, when other birds can’t be out, guests may still spot Valor outside, surveying his surroundings, or participating in a training session near the Helen and Arthur E. Johnson Animal Hospital. Each moment offers a chance to witness both the beauty of bald eagles and the thoughtful care that supports animals like Valor. 

Valor’s journey reminds us that conservation success is built through collective action, and that with patience, collaboration, and compassion, wildlife truly can thrive. 

Boi Can See Clearly Now: Cataract Removal for our Youngest Red-Necked Wallaby

Last year, the Helen and Arthur E. Johnson Hospital welcomed a special patient: Boi, a one-year-old, red-necked wallaby. At one year old, our Animal Care Specialists noticed that our youngest wallaby suddenly developed cloudiness in his right eye, which was diagnosed as a cataract by our Veterinary Medicine team.  

A cataract is when the lens in the eye becomes cloudy and makes it difficult for an animal to see. While cataracts are relatively common in older animals, they are unusual in one so young. Although Boi never showed signs of discomfort, there was high risk that the cataract would eventually damage the internal structure of his eye, making intervention the best option for his long-term health and vision.  

To ensure the best possible outcome, our Veterinary Medicine team, along with experts from Colorado State University, Johnson & Johnson and BluePearl Specialty + Emergency Pet Hospital – Lafayette, teamed up to help remove Boi’s cataract. The surgery was performed by Veterinary Ophthalmologist Dr. Trevor Arnold, DVM, MS, DACVO.   

To help explain the delicate process, a BluePearl Ophthalmology Registered Veterinary Technician offered a simple analogy: imagine the eye’s lens like an M&M. The outer wrapper represents the lens capsule, the chocolate layer is the cortex, and the center peanut is the nucleus. During cataract surgery, both the cortex and nucleus are removed while leaving the capsule intact. In many species, an artificial lens is placed inside the capsule, but wallabies don’t receive replacement lenses. As a result, Boi will be slightly farsighted, but his functional vision will be significantly improved. 

After a smooth recovery with mom, Boi has returned to Wallaby Way and is once again exploring his habitat alongside the rest of the wallaby mob.

Thank you to the experts who donated their time and expertise, as well as to Johnson & Johnson for lending a specialized phacoemulsification system. This advanced ophthalmology equipment allowed Boi’s cataract surgery to be performed on-site, reducing transportation and anesthesia time and creating a less stressful experience for Boi. 

We’re also incredible grateful to BluePearl Specialty + Emergency Pet Hospital – Lafayette for donating the operating microscope used during Boi’s procedure. This microscope has become an invaluable addition to our state-of-the-art Helen and Arthur E. Johnson Animal Hospital, helping us continue to provide exceptional care for the animals who call DZCA home. 

Boi’s story highlights the thoughtful care and strong partnerships that support animal health at DZCA every day, ensuring each animal has what they need to thrive.  

Caring for our Gorilla Boys

On December 10, our two Western lowland gorilla boys, Gunther and Kal, visited the Helen and Arthur E. Johnson Animal Hospital for routine preventative health exams. Following sedation, each gorilla was transported individually from their home in Primate Panorama to the Animal Hospital, where veterinary teams from Denver Zoo Conservation Alliance and partner organizations were ready to begin their work. 

To keep care organized and efficient, two dedicated teams of Animal Care Specialists, Clinical Veterinarians, and Registered Veterinary Technicians (RVTs) were assembled—one for each gorilla. Team members identified themselves by wearing colorful bandanas: red for Kal and green for Gunther. 

Each exam included an extensive health evaluation, featuring a full cardiac workup, dental examinations, gastrointestinal endoscopies, full-body CT scans, and comprehensive lab work. We were especially excited to collaborate with partners from the Great Ape Heart Project, as research shows that gorillas over the age of 30 are at increased risk for cardiac disease. While Gunther (19) and Kal (20) are still young, preventative care is the best way to protect their long-term health. 

Dental care was another key focus of the exams. We assessed both gorillas’ dental health, particularly as Gunther has a problematic tooth that will require a follow up evaluation. 

Being this close to our primate relatives is always humbling, especially when they outweigh us by several hundred pounds. These moments highlight the incredible trust built through years of medical behavior training and collaboration between our Animal Care and Veterinary teams. They also offer a rare behind-the-scenes look at how our state-of-the-art Animal Hospital supports exceptional care. 

Preventative medicine allows us to anticipate health concerns before they become serious and ensures that Gunther and Kal, and all the animals in our care, receive the highest level of medical support to thrive for years to come. 

DZCA President & CEO Announces Departure After 7 Successful Years 

“We extend our deepest gratitude to Bert Vescolani for his exemplary leadership and vision. Under his stewardship, DZCA reached significant milestones—including completing a state-of-the-art veterinary hospital, unveiling new exhibits such as Sea Lions, and guiding the organization through the global pandemic,” said Dr. Charles Scoggin, Chair of the Board of Governors. “His commitment to excellence is evident in the outstanding senior management team he built and, in the Zoo’s, strong financial position.” 

During his tenure, Vescolani led a $100 million reinvestment in the campus; opened new exhibits and habitats each year; strengthened animal welfare initiatives; expanded DZCA’s conservation impact; elevated the guest experience; increased the donor base and revenue; introduced new programs that strengthened a culture of passion, integrity, collaboration, and belonging; and launched a new brand, Denver Zoo Conservation Alliance, to the community. 

Reflecting on his time at DZCA, Vescolani expressed his appreciation for the opportunity to help transform the institution. 

“Serving DZCA has been one of the greatest honors of my career. Together, we achieved meaningful accomplishments over the last seven years. The work we do changes lives—both human and animal—and it has been a privilege to be part of it. None of this would have been possible without our dedicated staff, volunteers, partners, board members, supporters, and community, who make DZCA extraordinary. The time is right for me to pass the baton and advance my conservation impact in a new way. I am proud of what we accomplished together and have complete confidence in the team and the Board as they guide the organization into its next chapter.” 

Chief Operating Officer Cristal Torres DeHerrera will serve as Acting President and CEO while the Board of Governors conducts a national search for Vescolani’s successor. 

We offer a heartfelt thank you to Bert for his vision, compassion, and years of service. 

Home for the Ma-hali-Days

Earlier this year, we announced a big move for our beloved Nile hippo, Mahali to a natural wildlife preserve in Texas. Our partnership with the preserve presented a timely and important opportunity for Mahali’s future and for DZCA’s goals in water conservation. A transport crate arrived in August and our Pachyderm team began working to train Mahali for a comfortable and safe move to his new home. 

Crate training initially went very well. Mahali showed early signs of feeling comfortable in the crate, including eating and participating in training inside of the crate. Throughout this process, we shared updates on Mahali’s training, including a video from Animal Care Specialist Gracie Gilbert.  

Hippos, specifically, require ample time to prepare for change, and a move as significant as Mahali’s has had to progress at his pace. From an animal wellbeing perspective, care teams have known that they would advance only as Mahali was ready. Mahali was set to depart for his new home this fall, but during the final phase of this crate training, he made it known to his care team that he was not quite ready for this move.  

To best support Mahali, and in consideration of approaching winter weather and travel conditions, a decision has been made to continue working with Mahali and delay his departure until spring of 2026. An updated timeline for Mahali’s move will be determined by the training he completes over the next few months. 

Maura Davis, Curator of Large Mammals, shared that the Pachyderm team has worked tirelessly and cooperatively from the beginning to support Mahali’s health and comfort, with a shared commitment and understanding that animal wellbeing will always come first. Mahali is no exception, and we are grateful for the extra time we get to spend with him as he continues his training.  

When the time comes, Mahali will be well-supported, resilient, and ready for exciting changes ahead. 

Life After Death: A Look into DZCA’s Unique Pathology Program

Denver Zoo Conservation Alliance’s Helen and Arthur E. Johnson Animal Hospital is a state-of-the-art facility offering guests a look into the world of veterinary medicine from the Schlessman Visitor Center. Our dedicated team of clinical veterinarians and registered veterinary technicians exemplify DZCA’s commitment to advancing the care of our animals and furthering the field of zoo and wildlife medicine through innovation and scientific understanding. From slithery snakes to African lions, they ensure that every one of our animals receives the absolute best care possible. 

That care continues even after an animal dies, thanks to our veterinary pathology program. DZCA is among only a few institutions accredited by the Association of Zoos and Aquariums with a veterinary pathologist on staff who assists our team in making real-time decisions to improve the care that we give to our animals. Led by Dr. Sushan Han, a Board-Certified Veterinary Pathologist, this program helps us understand disease, improve care, and ultimately strengthen the science around our mission to create a world where wildlife thrives. 

What is Pathology? 

Pathology is the study of disease—how it develops, how it affects the body, and in some cases, how it may contribute to an animal’s death. 

In zoo medicine, veterinary pathologists like Dr. Han perform anatomic pathology, which involves examining tissues under a microscope or conducting a necropsy (the animal equivalent of an autopsy). This process helps identify illnesses, confirm diagnoses, and uncover the subtle clues that guide veterinarians and animal care specialists in caring for living animals. 

How Pathology Improves Animal Care 

Zoo veterinary medicine is a field of constant learning. Unlike domestic animals where research is more abundant, there’s still much to discover about the health and scientific understanding of zoo and wildlife species, many of whom are threatened or endangered. 

Our Clinical Veterinarians are Board-Certified Specialists in Zoological Medicine™ with strong expertise in zoo animal and wildlife clinical medicine. They are always pushing the borders of what is known for the clinical care of each of the species at DZCA. And there’s still much to discover. 

That’s where pathology comes in. When an animal dies, pathologists learn everything they can about that individual—from the cause of illness to how the body responded to treatment. These insights help improve the care, medicine, and wellbeing for others of the same species and beyond. 

At DZCA, having a Veterinary Pathologist on staff allows us to make real-time decisions to help improve care. It means our veterinary, animal care, and nutrition teams can get answers right away and apply that knowledge immediately to improve animal health. Recently, this helped us identify and treat an unusual parasite in our lorikeet flock within hours, helping to prevent further illness. 

Pathology also brings emotional closure. For our animal care and veterinary staff who form deep bonds with the animals they care for, having a medical understanding of why an animal passed can help bring comfort and a sense of further purpose. 

Impact Beyond DZCA 

While all AZA-accredited zoos are required to perform postmortem evaluations, DZCA stands out for maintaining a full-time, onsite pathology service within our Helen and Arthur E. Johnson Animal Hospital. This unique capability allows our team to learn from each case in real time and provides insights that not only enhance care for our own animals but also contributes to the broader field of wildlife medicine. 

Many of our animals serve as ambassadors for their species, and many are threatened or critically endangered. By sharing findings through publications, conferences, and collaborative programs, our work contributes to the global understanding of wildlife health and conservation. 

In addition to her work at DZCA, Dr. Han’s expertise extends across the broader zoo and conservation community. She lends her skills as a Pathology Advisor for the Great Ape Heart Project, where she studies heart disease in all great apes—a leading health concern for these species in both zoos and the wild. She also serves as a co-advisor for the Orangutan Species Survival Plan (SSP) and as a Pathology Advisor for the Association of Zoos and Aquariums’ Small Carnivore Taxon Advisory Group (TAG). 

Through these roles, Dr. Han helps advance the health and wellbeing of animals across the globe, ensuring that the lessons learned here at DZCA contribute to stronger care and conservation outcomes for wildlife everywhere.  

Life After Death 

Even after pathology work at DZCA is complete, many of our animals continue to contribute to science and learning. We maintain an onsite animal specimen education collection. This library we call “Biofacts” and has helped create hands-on learning experiences for generations of learners at DZCA. Additionally, through a historic partnership, most specimens are donated to the Denver Museum of Nature & Science (DMNS), where they become part of a permanent scientific archive. 

At DMNS, researchers can study these specimens for generations—expanding our understanding of wildlife biology, evolution, and conservation. It’s one more way these incredible animals remain vital ambassadors for their species, long after their lives have ended. 

A Holistic Approach to Care 

From life, death, and beyond, every step of DZCA’s approach to how we care for our animals reflects the deep compassion our teams bring to their work. When an animal passes, the process of understanding what happened offers not just scientific insight, but closure for the people who cared for them every day. It allows us to find meaning in loss, ensuring that each life continues to guide and improve the care we provide for others while strengthening our shared commitment to Saving Wildlife Together.  

An Announcement About Sumatran Orangutan Berani

Earlier this year, we shared that Berani’s kidney disease had progressed to late-stage kidney failure, meaning his organs could no longer function on their own.  

When recent bloodwork and a noticeable decline in his health showed that his quality of life was diminishing and he had entered end-stage kidney failure, our Animal Care and Health teams made the compassionate decision to humanely euthanize him to prevent any suffering. He passed surrounded by the people who loved him most. A postmortem exam will help us better understand his condition and contribute to the broader scientific knowledge that supports orangutan care and conservation. 

Throughout his illness, Berani showed remarkable resilience and trust in his caregivers. He voluntarily participated in many aspects of his healthcare—including blood draws that allowed our veterinary team to track his kidney values. This trust was a reflection of the strong bonds he shared with his caretakers, who worked tirelessly to ensure his comfort and adjust treatments as needed.

An Extraordinary Father Figure 

Berani moved to Denver Zoo Conservation Alliance in 2017 from Audubon Nature Institute as part of the Association of Zoos and Aquariums’ Species Survival Plan (SSP). While he quickly became a favorite among staff, members, and guests, he captured the world’s attention in 2020 when he took on the rare role of single father. 

After his mate, Nias, unexpectedly passed away, Berani stepped in to raise their infant daughter, Cerah. Male orangutans rarely take on caregiving roles, but Berani became a devoted, patient and caring father figure. Even as Cerah grew more independent, she often sought comfort in her dad’s arms.  

We know Berani’s absence will be an adjustment for Cerah, and our teams are working closely with the SSP and other orangutan experts to ensure she and the rest of our orangutan family receive the support and care they need during this transition. 

Berani’s Legacy

Berani’s impact is immeasurable. His legacy lives on through his daughters, Cerah and Siska, through his role in advancing conservation science, and through the countless lives he touched with his calm presence and gentle spirit. Our campus will never feel quite the same without him, but his story will continue to inspire compassion for orangutans and conservation worldwide. 

In addition to the deep bonds he formed here, Berani is also contributing to the future of orangutan care. Our Veterinary Medicine and Animal Care teams, alongside specialists from across the country, are using this opportunity to learn more about his kidney disease in hopes of helping other orangutans facing similar challenges. The knowledge gained from Berani’s case will be shared with the broader zoo and veterinary community, ensuring his story supports the long-term wellbeing of his species. 

Our campus will never feel quite the same without him, but Berani’s influence will continue to inspire compassion and advance conservation far beyond DZCA. 

Honoring His Memory 

Berani will be deeply missed by everyone who knew and loved him. His legacy will live on through his daughters, through the knowledge gained from his care, and through the lasting impact he had on our community. 

Like all animal passings, this is incredibly difficult for the people who worked directly with Berani. Members of his Animal Care team have shared what working with Berani has meant to them: 

“People across the world heard how Berani was such a great dad, but they might not have realized how much he truly meant to members of his care team. Even if you were in the middle of a task, when Berani invited you to play (through the mesh), you stopped and joined him because whatever you were doing could wait. It was an honor whenever he wanted to play, and it always reminded you of the special bond you shared when he would roll onto his back with his head toward you, getting as close as he could all while being extra silly. I remember the last time we played together like that – I was so thankful because I knew in that moment that this was probably the last time I’d experience this and I cherished every minute of it. I’ll also never forget when he’d look into your eyes, really seeing you, and then find something to gift you and smile. Berani reached people across the world, not only inspiring them to care about him and his family, but also to care about orangutans in the wild. I’m privileged to have worked with him, to have known him, and to have loved him.”

— Christa Klein, Animal Care Specialist 

 
“Berani was a gentle and intelligent soul who taught me so much. A wonderful father and steadfast protector, he had a playful curiosity that was truly special. I’ll never forget how he would bring large branches into the building to fish things off the shelves, or how he would whistle to get our attention. He found joy in the simple things, whether it was using combs to make music, painting the walls, or, his personal favorite, playing with the hose. His strength was never more apparent than in his final months. Despite his kidney disease, he was incredibly tolerant and brave during his every-other-week blood draws. It was a testament to his trust and resilience. Berani showed me the incredible depth of great apes and, through him, I fell completely in love with them. He will be deeply missed.”
  

— Kirstin Prunchak, Animal Care Specialist

It has been such an honor for our team to care for Berani during his time at Denver Zoo Conservation Alliance. He has taught us so much about orangutan behavior and has redefined what we know about parental care in orangutans. Watching the bond between Berani and his daughter Cerah was truly an incredible experience. Berani was an incredible father and advocate for his wild counterparts. His bigger-than-life personality is going to be greatly missed by our team, but we know his impact will live on through his daughters Cerah and Siska. Berani will be greatly missed.

— Matthew Lenyo, Curator of Primates and Carnivores

Celebrating Two Years of Siska, Our Baby Sumatran Orangutan 

A Name That Honors a Legacy 

Siska was named in honor of Dr. Fransiska Sulistyo, a renowned orangutan veterinarian, conservationist, and researcher whose work has made lasting contributions to orangutan health and welfare in both human care and the wild. The name is a tribute not only to Dr. Sulistyo’s legacy, but also to the collaborative efforts it takes to protect and preserve these extraordinary animals. 

A First for Her Mother—and for Conservation 

Siska is the first baby for her mother, Eirina, who came to DZCA from Germany’s Zoo Dortmund in September 2016, bringing her playful spirit to her new home in Primate Panorama. Once at DZCA, Eirina was recommended for breeding as part of the Sumatran Orangutan Species Survival Plan (SSP)—a vital cooperative program that manages orangutan populations in accredited zoos to ensure genetic diversity and the long-term survival of the species.  Every birth under the SSP is carefully planned and monitored, making Siska’s arrival a milestone not just for DZCA, but for the global effort to save orangutans from extinction.  

Fun fact: During Eirina’s pregnancy, she and her care team made national news when one of our previous Animal Care Specialists was able to soothe the first-time mom’s morning sickness by making her the same tea she drank when pregnant with her own daughter!  

The Smallest Member, the Biggest Joy 

Now approaching her second year of life, Siska is thriving—and making it clear that she’s not just any baby orangutan. She’s known for her playful, adventurous nature—much like a human toddler (we do share about 97% of our DNA with orangutans, after all!), always climbing high into the trees, jumping into soft beds of woodwool or hay, or playing elaborate games of hide and seek with blankets and sheets. Her bond with her older sister Cerah is especially sweet, as the two often engage in energetic play sessions that mimic the social learning typical of young orangutans in the wild. 

Siska has also started forming relationships outside of her immediate family. Recently, she’s taken an interest in spending more time with her dad, Berani, and has even been spotted climbing into his lap during public demonstrations—a clear sign of her growing social curiosity and confidence. 

Food-wise, Siska is eager to try anything the group is eating. While she hasn’t chosen a favorite yet, there’s one treat she definitely can’t resist: diluted fruit juice—originally prepared to help keep Berani hydrated. Siska is known to make a dash for the straw whenever she spots someone sipping from it, eager for a sweet taste. 

And while she’s venturing out more independently now, Eirina keeps a watchful eye, often sitting nearby as Siska explores the world around her—learning the fine art of swinging, balancing, and foraging. Orangutans stay with their mothers longer than most mammals, sometimes up to eight years, so this early time is essential for learning survival skills. 

A Symbol of Hope 

The birth and development of orangutans like Siska are crucial at a time when wild Sumatran orangutan populations face severe threats from deforestation, habitat loss, and illegal wildlife trade. With fewer than 14,000 individuals remaining in the wild, every birth in captivity offers hope for education, awareness, and potential future reintroductions. 

Your financial support helps ensure a brighter future for our little one and ALL our orangutans. Here’s how you can help: 

Symbolically Adopt an Orangutan:

With your adoption of a plush orangutan, you’re helping to ensure that Siska and the other five, amazing individuals continue to get world-class care. You’re also supporting our work with the Species Survival Program, which helps zoos and aquariums around the world optimize the health and breeding of their animal residents. 

Make a Financial Contribution:

  1. Enrichment for the whole family: $50 
    • Highly intelligent, orangutans require a great deal of enrichment for mental and physical wellness. Make sure the family always has exciting new items to discover!  
  2.  Vet visits and vaccines for a year $166/month: 
    • Your donation will ensure that this beloved bambino continues to receive regular exams and critical vaccines from our veterinary team. 
  3. Nutrition: $267/month 
    • Shower the whole family with nutritious and delicious treats like cashews and fresh mango. Your kindness keeps the care flowing! 

Your support of DZCA is critical not only to our orangutans, but to the other 2,500+ animals that call DZCA home!

Keeping Groucho Sharp: Cognitive Care for DZCA’s Oldest Elephant 

At 55 years old, Groucho is a living legend at Denver Zoo Conservation Alliance, and well beyond the median life expectancy of 47 years for Endangered Asian elephants. As the oldest member of our bachelor herd in Toyota Elephant Passage, Groucho enjoys the same gold-standard physical care as all our elephants, but his care team is also investing in something just as important: his mind. 

Recently, our animal care specialists designed a custom cognitive training program to help Groucho stay mentally sharp as he ages. Inspired by the advanced training already enjoyed by younger herd members like Bodhi, these brain games are tailored to Groucho’s unique needs and learning style. 

Groucho’s new game might sound simple, but it’s a mental workout. He’s presented with a lineup of canisters—some empty, some containing a distinct scent: coffee beans. His task is to sniff each canister and indicate the one with coffee by lifting a front foot. To keep the game unpredictable, his team varies the sequence and sometimes add a distractor scent like lemon to make him think harder. 

“Some days he nails it on the first try, and other days we start over a few times,” says Lauren Cahill, Animal Care Specialist. The key is that he never knows when the coffee scent will show up. That unpredictability keeps him engaged. 

At first, Groucho was cautious and sometimes confused by the new routine. His dedicated caretakers took it slow, using positive reinforcement and short, rewarding sessions to build his confidence. After nearly two months stuck at the same training step, something clicked and now Groucho looks forward to the challenge. 

“He’ll even leave hay, his favorite snack, when he sees the canisters,” Cahill says. “For Groucho, that’s a big deal.” The training has also deepened his bond with his care team, especially meaningful given that he hasn’t always been eager to work closely with female staff members. 

The benefits go beyond the brain game itself. His care team has noticed Groucho showing more enthusiasm in all his training sessions, even physical exercises. “It’s like he’s thinking differently, more like the younger boys,” says Cahill. 

And there’s more ahead. Future cognitive challenges could include matching shapes, copying another elephant’s behavior, or match-to-sample games, all designed to keep Groucho’s mind as active as his body. 

Groucho’s story is a reminder that caring for aging animals means addressing their whole well-being—physical, emotional, and mental. We invite you to visit Toyota Elephant Passage to see Groucho and the rest of our bachelor herd, and learn more about the innovative ways we’re supporting these incredible animals. 

Partnering for Pollinators

Written By: Satya Akquia, Community Engagement Manager and Marcelle Condevaux, Horticulture Production Coordinator

The idea for community-supported pollinator pathways started in late 2023 to early 2024. DZCA’s Community Engagement team was tasked with creating conservation programs that community members could participate in. The initial idea focused on creating pollinator pathways using wooden pallets—which the Zoo has in excess—as planters. This approach would allow community members to create more pollinator habitats in their own yards, porches, and community centers, wherever they had space!

Two community members offered to test the newly-built pallet planters, along with maintaining Zoo-provided plants and seeds. They learned fairly quickly from this trial run that pallet planters do not work well in Colorado due to our arid climate. In fact, the pallets dried out so fast that most of the plants failed along with all the seed sprouts. For the next round, hanging pots were used that could work with fences or limited-space porches for participants that didn’t have yards. For those with more space, metal rings were used to contain the gardens. These options proved more effective for Colorado’s climate.

In her role as Community Engagement Manager, Satya also attempted to grow plants from seed on her porch but was unsuccessful. It was ultimately determined that, for the Pollinator Pathway to be effective, the Zoo would need to provide semi-mature plants and use different types of planters. 

After analyzing community data, the Five Points neighborhoods (80205 and 80216) were identified as the best area for the project. Community Engagement already had connections with the My Outdoor Colorado group and, through them, Neighbors Together. 

From January to May 2025, Satya attended the organizations’ meetings to present the Pollinator Pathway Project and hosted an animal meet-and-greet at the Tramway Nonprofit, welcomed community members to the Zoo, and participated in an Easter celebration to reach residents outside of formal organizations. She also looked to community leaders to help spread the word and listed the project in the Nextdoor app.

A key supporter of the work and project was Mrs. Sandy, who personally called her neighbors and advocated for the project. Without Sandy’s endorsement and personal involvement, the project’s success would have been far less likely. 

A strong community leader in the Cole neighborhood, Sandy has been one of our greatest success stories! While installing her garden, our Community Engagement team noticed small bugs initially thought to be flies. Upon closer inspection, they found they were ground dwelling stingless bees.

Sandy was quick to suggest getting rid of them, despite the work to install her own pollinator garden! The team asked her to wait until they could identify the insects and determine whether they were dangerous. As suspected, they were harmless stingless bees, and she agreed not to spray them. 

Through this pollinator garden process, a community member learned that not all bees sting—and now Sandy wants even more flowers! This level of personal community involvement has already demonstrated the power of education in conservation. 

Getting the community involved in growing pollinator-friendly perennials was a priority for the Community Engagement team. When we actively take part in cultivating plants, we develop a sense of pride, ownership, and connection to the plants and to the environment. This pride naturally feeds into investment in our gardens and the insects they support.

In partnership with Community Engagement, DZCA’s Horticulture team was excited to bring community members into their greenhouses to learn how to sow seeds and help the group reach its planting goals for the program. As the greenhouse team carefully tended to the seedlings during delicate germination stages, the community eagerly looked forward to plant pick-up, when they could finally take home the plants they had helped to sow. 

In just a few years, these same plants will be well-established in our neighbors’ gardens, reaching maturity and offering their unique full pollinator potential. 
 
Four native perennial species were selected for the project, based on their high pollinator visitation potential: Blanketflower, Bigleaf Lupine, Western Wallflower and Mexican Hat Flower.

Together, these species create a strong foundation for a vibrant, diverse pollinator garden. And because they’re native to Colorado, they support local ecosystems while contributing to low-water, sustainable landscapes. By growing these plants together with care, intention, and community involvement, we’re not just planting flowers, we’re promoting an ecosystem for years to come.