Animals Thought To Be Extinct. Bruce henderson / wikimedia commons / cc by 4.0. This darwinian darling once again graced us with the knowledge of its presence off the coast of south africa in 1938, a whopping 66 million years after it was thought to have retired.
The new guinea singing dog was long believed extinct in the wild, with the only survivors living in zoos. This species can weigh up to 660 pounds and grow up to 10 feet. The number of eastern quoll species have drastically reduced after red foxes were brought to the australia.
Small wonder that the scientific community thought it extinct for more than 30 years.
Eastern quoll currently inhabits the wilds of new south wales, while it was last seen in tasmania and australia in 1963 before rediscovered in 1989. Only 540 amur tigers are left in the wild. Extinct in 1620, rediscovery in 1951. The oncoryhynchus kawamurae, also known as black kokanee, is a japanese salmon species that was believed to have gone extinct in 1940.