The World's Rarest and Possibly Extinct Animals

Source: vivtony00 / Flickr

1. Kouprey
Scientific name: Bos sauveli
Date last recorded in wild: 1969/70
Geographic region: Cambodia; Lao People’s Democratic Republic
Threats: Hunting, disease, habitat loss

Source: Eduardo5678 / Wikimedia Commons

2. Wondiwoi Tree-kangaroo
Scientific name: Dendrolagus mayri
Date last recorded in wild: 1928
Geographic region: Indonesia
Threats: Hunting

Source: J. G. Keulemans, in W.L. Buller's A History of the Birds of New Zealand / Wikimedia Commons

3. South Island Kokako
Scientific name: Callaeas cinereus
Date last recorded in wild: 2007
Geographic region: New Zealand
Threats: Habitat loss, introduction of predators

Source: John Livzey Ridgway / The Auk / Wikimedia Commons

4. Imperial Woodpecker
Scientific name: Campephilus imperialis
Date last recorded in wild: 1956
Geographic region: Mexico
Threats: Hunting, habitat loss

Source: U.S. Fish and Wildlife Service / Wikimedia Commons

5. Poo-uli
Scientific name: Melamprosops phaeosoma
Date last recorded in wild: 2004
Geographic region: Hawaii
Threats: Habitat loss, introduction of predators