Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep, and even jellyfish sleep.

Learn why sardines vanished, leaving tens of thousands of African penguins starving during their annual moult along South Africa’s coast.

The tree of heaven was introduced to the United States in the 1700s, according to The Nature Conservancy, and quickly became ...

Murwillumbah is a town in the heart of the Tweed Valley with an artistic vibe, surrounded by a lush landscape of valleys and ...

So, how do the animals that live in snowy landscapes adapt to survive freezing temperatures? From furry noses to group hugs, here are a few of the ingenious ways they stay warm an ...