Brookfield Zoo Chicago has lost one of its most remarkable residents. Malena, an 11-year-old Amur tiger known for her quiet strength and medical breakthroughs, was humanely euthanized on May 23, 2025, after veterinarians discovered she was suffering from kidney failure and dangerous heart rhythm problems. The zoo’s medical team found that Malena’s condition was likely caused by an undiagnosed cancer. Preliminary examination results point to a cancerous process that had severely compromised her health. “She had a quiet strength,” said one of her caregivers. “She was majestic, but also gentle.” Malena arrived at Brookfield Zoo in 2020 and quickly became … Continue reading Amur Tiger Malena Dies at 11 After First Hip Surgery in North America