The vaquita is the rarest animal in the world and the rarest marine ... But the Sumatran rhino, the wooly rhino’s closest ...

Japan's Ryukyu Islands, which includes Okinawa, are the exclusive home to two rare mammals, the Amami rabbit and Ryukyu ...

In the cold, lightless Pacific Ocean deep, the seabed is scattered with metal-rich rocks coveted by miners -- and huge numbers of strange and rare animals almost entirely unknown to science.

In fact, it was what they called “the rarest of rare” animals. What the Texas Parks and Wildlife—Trans-Pecos Wildlife District spotted from a helicopter and captured in video was a melanistic (black ...