Sun bears are the smallest bear species and among the most threatened by bile farming — their welfare in zoo and rescue sanctuary settings.
Sun bear welfare in bile farming contexts represents some of the most severe, ongoing welfare harm documented for any bear species. Animals confined for years or decades in small cages with permanent catheter installations experience multiple simultaneous welfare failures — physical pain and infection risk, extreme spatial restriction, complete behavioral suppression, and social isolation. Rescue and rehabilitation programs that remove bears from these conditions provide relief from acute suffering, but the psychological recovery from long-term trauma is measured in years. The welfare case against bear bile farming is unambiguous — the practice causes severe, preventable, ongoing suffering with no justification that survives ethical scrutiny.