Young Polar Bear Passes Away at San Diego Zoo

A Beloved Polar Bear’s Life and Legacy

The San Diego Zoo community is deeply saddened by the passing of Kalluk, a 24-year-old male polar bear who died on August 14, 2025, after battling age-related illnesses. Since arriving at the zoo in 2001, Kalluk became a cherished figure, known for his playful nature and significant contributions to polar bear research. His death marks the end of an era for the zoo and its conservation efforts, leaving behind a legacy that continues to inspire.

A Gentle Giant’s Journey to San Diego

Kalluk was brought to the San Diego Zoo in 2001 as an orphaned cub from Alaska, along with his sister Tatqiq and their companion Chinook. The trio was rescued after being found alone in the wild and quickly became a favorite at the zoo’s Polar Bear Plunge exhibit. Kalluk, whose name means “thunder” in Inuktitut, was recognized for his calm yet curious personality, often seen splashing in pools or exploring his habitat. Over the course of 24 years, he grew into a symbol of resilience, winning the hearts of staff and visitors alike. His presence offered a unique glimpse into the world of polar bears, a species increasingly threatened by climate change.

Age-Related Decline and a Difficult Decision

In recent weeks, Kalluk began showing signs of age-related health issues, which led the zoo’s wildlife care team to conduct a thorough wellness evaluation. Despite their best efforts, the prognosis was dire, resulting in the difficult decision to euthanize him. The San Diego Zoo Wildlife Alliance released a statement expressing their sorrow, noting that after reviewing all options, experts made the heartbreaking choice to let him go. Kalluk’s advanced age—far beyond the typical lifespan of wild male polar bears—highlighted the success of the zoo’s care, but also the challenges of aging.

A Legacy of Conservation and Research

Kalluk’s impact went far beyond his enclosure. He played a key role in groundbreaking studies on polar bear physiology, sensory perception, and adaptation, providing data that has helped scientists worldwide understand how these animals survive in a warming Arctic. The zoo emphasized his contributions, stating that he served as a bridge between worlds, helping to ensure a future for his kind. His interactions with visitors also inspired many to support conservation efforts, raising awareness about the threats posed by melting sea ice and climate change. Kalluk’s story became a powerful call to action, urging people to take steps to protect polar bears in the wild.

Community and Staff Reflect on Loss

The news of Kalluk’s passing has resonated deeply with the San Diego community and zoo staff. Caregivers described him as a “calm strength” with an adventurous spirit, leaving an “indelible mark” on those who worked with him. Visitors, many of whom had grown up watching Kalluk, shared memories on social media, with one user saying, “He was my favorite part of zoo trips as a kid.” The zoo acknowledged the collective grief, noting that Kalluk’s presence touched “countless guests” over his two decades. As the zoo mourns, plans for tributes or memorials are being developed, with staff encouraging donations to polar bear conservation in his honor.

The Future of Polar Bear Conservation

Kalluk’s death comes at a critical time for polar bears, whose populations face increasing threats from climate change and habitat loss. The San Diego Zoo remains dedicated to conservation, with Tatqiq and Chinook continuing to serve as ambassadors for their species. The loss of Kalluk underscores the urgency of protecting polar bears, whose survival depends on global efforts to combat warming temperatures and preserve Arctic ecosystems. The zoo’s ongoing research, informed by Kalluk’s contributions, will guide strategies to support wild populations. For now, his absence leaves a void, but also a renewed commitment to carry forward his legacy.

A Lasting Impact

Kalluk’s passing marks a somber moment for the San Diego Zoo, where he was more than just an animal—he was a teacher, an ambassador, and a beloved friend. His 24 years enriched countless lives, from inspiring visitors to advancing scientific knowledge. As the zoo and community grieve, Kalluk’s legacy fuels the fight to protect polar bears in a rapidly changing world. His story reminds us of the power of connection and the urgent need to act for the future of his species.