Palm oil plantation expansion in Borneo and Sumatra is the primary driver of orang-utan habitat loss, with individuals killed, injured, or orphaned during forest clearing requiring costly and complex rehabilitation.
Orang-utans are critically endangered great apes with profound cognitive and social complexity. Individuals caught in deforestation events — burned out of trees, attacked during crop protection, or orphaned after maternal killing — suffer acute trauma followed by years of captivity during rehabilitation. The welfare investment required to give each rescued orang-utan a functional future is enormous, and the underlying deforestation driver must be addressed to prevent endless repetition.