The timber wolf thrives where strength and cooperation matter most. Living in packs of up to ten individuals, they patrol ...

From napping half their brain while flying to taking four-second naps to survive parenthood, these animals have evolved ...

The common brushtail possum was introduced to New Zealand for fur farming in the 1800s. Instead of staying controlled, it ...

From polar pack ice to Arctic archipelagos, these winning images reveal how life is exquisitely engineered to survive at the ...

Polar bear encounters with people are rare, but they can happen to people who live in, work in, or visit the Arctic. Here's how to stay safe.

Around the world, rising temperatures and erratic weather are forcing animals to adapt in startling ways – with consequences ...