Dwarf Cloud Rats
Scientists said that the cute little dwarf cloud rats went extinct around 115 years ago but just in 2012, they were rediscovered. These furry little critters are still on the endangered list and can be found throughout tropical forests, which as you know is also an endangered species in its own right.
Purple Frog
The purple frog resembles a rather icky blob but it earns a spot on our list. This species was believed extinct until it was rediscovered in 2003 by scientists in Palode, India. The Purple Frog tends to live most of its life underground while only coming out for mating.