Vaquita - This small porpoise is found only in the Gulf of California, and there are believed to be fewer than 10 individuals left in the wild.
Javan Rhino - Found only in Indonesia, there are estimated to be fewer than 70 individuals left in the wild.
Amur Leopard - This big cat is found in the Russian Far East and Northeast China, with only around 100 individuals remaining in the wild.
Black Rhino - This species is found in parts of Africa, and there are currently fewer than 5,500 individuals remaining in the wild.
Cross River Gorilla - This gorilla species is found in Cameroon and Nigeria, with only around 300 individuals remaining.
Leatherback Turtle - This species of sea turtle is found in oceans around the world, but there are believed to be fewer than 10,000 breeding females remaining.
Sumatran Elephant - This elephant species is found on the Indonesian island of Sumatra, with only around 2,400 individuals remaining.
Hawksbill Turtle - This species of sea turtle is found in oceans around the world, but there are believed to be fewer than 10,000 breeding females remaining.
Mountain Gorilla - This gorilla species is found in the Virunga Mountains in central Africa, with only around 1,000 individuals remaining.
Sumatran Orangutan - This great ape species is found only on the island of Sumatra in Indonesia, with only around 14,000 individuals remaining.