Mobula rays are often referred to as “devil rays,” but unlike their relatives, stingrays, they lack a stinger, making them a bit less nefarious than their name implies. When rays gather together into ...

In this Nevada wildlife refuge area, discover a mysterious geothermal pool that houses the world's rarest fish and extends ...

The Mariana Trench is the deepest place on Earth, and we're still in the dark about much of the life that calls it home. Here ...

The thylacine, also known as the Tasmanian tiger or Tasmanian wolf, went extinct in the 20th century. Scientists can now ...