Chimpanzees in zoos are living into their 40s and 50s thanks to excellent veterinary care, creating new challenges in providing appropriate welfare for elderly apes with age-related health conditions.
The welfare of elderly zoo chimpanzees requires proactive and individualized care that recognizes both their complexity as highly intelligent social animals and their vulnerability as aging individuals. An older chimp who has lost social status may be denied access to preferred resting spots, food, or social partners. Environmental modifications that provide protected feeding areas, accessible climbing options at lower heights, and heated sleeping areas make a meaningful welfare difference. Cognitive enrichment - puzzles, novel foods, social complexity - remains important throughout life and may help maintain mental health in aging apes. Regular welfare assessments that monitor individual animals for signs of pain, social exclusion, or cognitive decline are essential.