This endangered porpoise is the rarest marine mammal globally, with only around ten individuals left in the wild. It only lives in the Gulf of California in Mexico.
The Northern White Rhinoceros is facing extinction, with only two females remaining. Poaching for their horns was the primary reason for their decline.
Also known as the Asian unicorn, the saola is a mysterious antelope species discovered in 1992. Very little is known about these animals, and it’s almost impossible to spot them in the wild.
The Javan rhinoceros is an increasingly rare rhino species. Around 70 Javan rhinos are estimated to remain in the wild, all in Ujung Kulon National Park in Indonesia.
The Amur leopard is the hardest-to-find big cat on Earth. It is found mainly in Russia and China in places close to their borders
This critically endangered gibbon species lives only on Hainan Island, China. Habitat loss and hunting mainly threaten this species, with only around 30 of them remaining.
A subspecies of the Sumatran orangutan, the Tapanuli orangutan also falls on this list, with a population estimated at less than 800.
Their population dwindled due to habitat loss due to prairie dog eradication programs and poisoning by rodenticides used to control prairie dogs.