Brown Bear Recovers After Groundbreaking Brain Surgery

Boki, a three-year-old bear at the Wildwood Trust in England, has emerged from hibernation healthy and active following a pioneering operation to treat hydrocephalus.

Boki, a European brown bear, underwent a first-of-its-kind brain surgery in October 2024 to address hydrocephalus, a condition causing fluid buildup on the brain.
Veterinary surgeon Romain Pizzi performed the five-hour procedure, installing a stent to drain excess fluid from Boki's brain to his abdomen.
The bear has emerged from semi-hibernation in good health, showing no signs of seizures or other symptoms and retaining his playful personality.
Boki lost approximately 30kg during hibernation, likely due to growth, and zookeepers are now focused on helping him regain weight safely.
Plans are underway to reintroduce Boki to two adult bears at the sanctuary, though caretakers are proceeding cautiously to ensure his continued recovery.