The document discusses various endangered species around the world and the threats they face. It provides facts about populations and trends for different critically endangered species, including the Amur leopard with fewer than 40 individuals left, Javan rhinoceros with only 60 remaining, and northern white rhino which is extinct in the wild. Many species face population declines and risk of extinction due to habitat loss, poaching, hunting, and lack of genetic diversity. Conservation efforts are needed to protect endangered species and their habitats in order to prevent their disappearance.