Chimpanzees that spent years in research laboratories are receiving comprehensive medical care at the Second Chance Chimpanzee Refuge in Liberia, where specialists conducted tests including blood work, ultrasounds, and joint mobility assessments. The animals, belonging to the critically endangered West African subspecies Pan troglodytes verus, now live on mangrove-covered islands where they can roam freely and form social groups. Sanctuary officials say routine health checks are vital for early disease detection and ensuring lifelong care for animals that were captured from the wild as infants before enduring years of captivity.