Orangutan Breeding Program Leads to Increase in Births

Melissa Peterson, an associate primates curator at the Memphis Zoo, announced the birth of a female orangutan named Ruhana, marking one of eight orangutan births in U.S. zoos since the beginning of 2025. This increase in births is attributed to a breeding program aimed at conserving critically endangered orangutans. The Orangutan Species Survival Plan (SSP), coordinated by Angie Selzer of the Fort Wayne Zoo, has been developing breeding recommendations since 1985, focusing on maintaining a healthy population that reflects the natural history of wild orangutans. The SSP uses a studbook to track genetic lines and ensure successful breeding outcomes. The first birth in this recent wave occurred in February 2025 at the Indianapolis Zoo, followed by several others at various zoos across the country. The program employs human-like practices for the care of orangutans, including the use of human prenatal vitamins and training for maternal behaviors. Despite the successful births, the wild populations of orangutans face significant threats, with estimates of around 100,000 Bornean orangutans and 11,000 Sumatran orangutans remaining. Conservationists emphasize the importance of these captive births for species conservation, as they serve as ambassadors for their wild counterparts and contribute to research that benefits both captive and wild populations.