The Nazca lived between 100 B.C. and A.D. 800 in what scientists call a tropical desert. Yet just offshore, the sea teemed ...

Animal species that live in environments as harsh as the Antarctic have many incredible adaptations to help them survive.

Motherhood in the animal kingdom can be incredibly intense, with many mothers going to extreme lengths to protect their young. While some animals show nurturing behaviors, others become fierce ...

From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

Interestingly, the very thing penguins can help control is also one of their biggest threats. New research uncovers stunning ...