What is the African elephant? African elephants are the largest land animals on Earth. They are slightly larger than their ...

Of the many animals protected by the Endangered Species Act, there may be no other species more American than red wolf. Known as "America's wolf," red wolves are the only species of wolf that live in ...

Each spring, millions of wildebeest begin a 500-mile journey driven by rain, grass, and survival. Wildebeests gather to graze and calve on the short-grass plains. Millions of wildebeest participate in ...

"The largest elephant ever. It doesn't matter if they are a dream or reality." National Geographic's latest documentary film, "Ghost Elephants," follows Nat Geo explorer Steve Boyes to locate the ...

A picture encyclopedia presenting a general introduction to the world's mammals and the vital statistics and behavior for each of the entries from aardvark to zorilla.