Forget festivals and sporting events, the Bracken Cave bat colony is considered to be the largest gathering of mammals on ...

​From skies filled with battalions of bats, oceans filled with feeding frenzies, to grasslands alive with herds in motion, ...

Have you ever wondered what the biggest land animal in history looked like, or which creature ruled the oceans as the largest of them all? Prehistoric giants often come to mind, but the story goes ...

BELA-BELA, South Africa (AP) — Tuesday is World Elephant Day. Here are five things to know about the largest land animals on our planet. There are three species of elephants: the African savanna or ...

The moose is a charismatic animal that inhabits the circumpolar boreal, temperate broadleaf and mixed forests of the northern ...

Quick Take Reaching a size 5 times larger than males is a biological benchmark for breeding females. Holding breath for 10 minutes underwater dictates the specific aquatic reach of the green anaconda.

The Great Nile Migration is one of the greatest natural events in the world—and nearly impossible to witness. WSJ traveled by helicopter and ultralight aircraft to watch six million antelope storm ...