Sadly, a number of animals have also not been spotted in several years and are now presumed extinct ... to take a look back on some of the most recently declared animal extinctions and their ...

Click through this gallery for our ranking of the scariest extinct creatures we're relieved we never had to face ...

Extinct species are every bit as interesting ... your jaw drop if they had survived into the present-day. The class of animals that we refer to as “reptiles” or “reptilia” came into ...