Gilbert’s Potoroo, sometimes called a rat-kangaroo has a bit of history and was first discovered by John Gilbert in the mid 1800’s. This little guy seemed to just disappear off the face of the earth, and was thought to be extinct for a long time. (There are a large number of different rat-kangaroos in Australia, but this one is the most fascinating)
Sometime in the mid 1990’s a Gilbert’s Potoroo was accidently caught while research was being done on wallabies in a Nature Reserve in Western Australia. They have since tried to breed these in captivity to try and preserve the species, but they just wouldn’t come together. Gilbert’s Potoroo is now on the CR list (Critically Endangered)
They were eventually taken to Bald Island which is just off the Western Australian coast, this Island is a Nature Reserve, and the Gilbert’s Potoroo is now starting to breed. They will stay on the CR list as their numbers are still very small, but hopefully in the future this will change.
If you would like to know more about the Gilbert’s Potoroo
Wikipedia has a very good article.