Polar bear fur isn't really white -- it's transparent and covers up black skin. Here's why they look white when you see these majestic bears.

Tech & Science The eye-opening science of close encounters with polar bears It’s a pretty risky business trying to take a blood sample from a polar bear.

Only females are tracked with the collars because male polar bears — who can grow to 2.6 metres (8.5 feet) — have necks thicker than their heads, and would shake the collar straight off.

It's a pretty risky business trying to take a blood sample from a polar bear -- one of the most dangerous predators on the planet -- on an Arctic ice ...

It's a pretty risky business trying to take a blood sample from a polar bear -- one of the most dangerous predators on the planet -- on an Arctic ice floe.- Eating seaweed - It has already shown ...

LONGYEARBYEN - It's a pretty risky business trying to take a blood sample from a polar bear -- one of the most dangerous predators on the planet -- on an Arctic ice floe.

Debby holds the record as the oldest polar bear ever documented. Born in the Soviet Union in 1966, she was orphaned early in life and later transferred to Canada, where she found a permanent home ...

Polar bears eat more land food as ice melts, affecting their diet.