Toronto Zoo Euthanizes 17-Year-Old Sumatran Tiger, Hari, Due to Kidney Failure

Toronto Zoo Bids Farewell to Beloved Sumatran Tiger

The Toronto Zoo announced on February 18, 2026, the difficult decision to euthanize Hari, a 17-year-old Sumatran tiger. The male tiger, a resident of the zoo since 2011, was suffering from advanced kidney failure and other age-related health issues, leading to a decline in his quality of life.

Health Complications Led to 'Compassionate' Decision

Zoo officials stated that Hari's condition, primarily kidney failure, had become increasingly challenging to manage. Kidney failure in large cats can significantly impact energy levels, appetite, and overall organ function. Despite the veterinary team's best efforts, Hari's health continued to worsen. A post-mortem examination further revealed additional abnormalities suggesting he had cancer.

The Toronto Zoo described the euthanasia as a 'most difficult' yet 'compassionate' choice, made to spare Hari unnecessary suffering. In an official statement, the zoo emphasized that such decisions are 'carefully considered medical decisions grounded in science, ethics, empathy, and love for the animals in our care.'

Hari's Legacy at the Toronto Zoo

Hari arrived at the Toronto Zoo in 2011 from the San Diego Zoo. At 17 years old, he was considered elderly, having exceeded the average lifespan of Sumatran tigers in the wild, which is typically around 15 years.

He will be remembered fondly by staff and visitors for his distinctive personality. Zoo officials recalled his 'laid-back demeanour, his deep love of food, and his beloved barrels, which he would often drag along and even bring to bed with him.' His 'moans, low grumbles, and soft chuffs, especially when greeting Kemala,' another tiger at the zoo, will also be missed.

Conservation Efforts for Sumatran Tigers

Hari's passing highlights the ongoing conservation challenges faced by Sumatran tigers. This subspecies is classified as critically endangered, with estimates suggesting only 300 to 500 individuals remain in the wild. The Toronto Zoo actively participates in the Species Survival Program (SSP) for Sumatran tigers, a collaborative effort among zoos to manage and conserve endangered species populations.