Pinocchio Anolis (Anolis proboscis) in Ecuador
This animal was considered extinct for 50 years, until it was rediscovered in the cloudforest of Ecuador in 2005. Afterwards, it has been observed not very frequently, but enoughh to conduct some research. Even though, a whole pletora of sensationalistic titles (rediscovery, reborn from extinction) spread on the news when in 2010 a team of the ecuadorian herpetological company "Tropical Herping" finally succeeded in finding the species in the wild. You can learn a few things about this in this link.