What caused Malena's death?
Malena was euthanized due to kidney failure and related heart arrhythmias. A necropsy suggested a cancerous process was preventing her kidneys from functioning properly.
Pets / Animals
Brookfield Zoo Chicago is mourning the loss of Malena, an Amur tiger who captured the hearts of many. Malena, who arrived in 2020, was euthanized on May 23, 2025, after veterinarians discovered her kidneys were not functioning properly. She...
Malena’s passing marks a somber moment for Brookfield Zoo and the broader conservation community. Acquired in 2020, Malena quickly became a favorite among visitors and staff alike. In 2021, she underwent a groundbreaking total hip replacement, setting a precedent for veterinary care for her species. Unfortunately, recent health complications revealed severe kidney abnormalities, leading to life-threatening heart arrhythmias. A necropsy suggested a cancerous process was the underlying cause. Amur tigers, also known as Siberian tigers, face severe threats in the wild, with their population dwindling to less than 500. Zoos like Brookfield play a crucial role in their conservation through breeding programs and providing specialized care. Malena’s story underscores the challenges and triumphs in preserving these majestic creatures.
Malena was euthanized due to kidney failure and related heart arrhythmias. A necropsy suggested a cancerous process was preventing her kidneys from functioning properly.
Malena was the first Amur tiger in North America to undergo a successful total hip replacement. She was also known for her calm strength and the bond she shared with her caregivers.
Amur tigers are critically endangered, with less than 500 remaining in the wild.
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