Why did the brown bear evolve into the polar bear? Animation describing how brown bears adapted to life in the Arctic. Sam, a young tortoise, is hungry. Grandad Charlie tells him a story about how ...

Brown Bear, What do You See?; Polar Bear, Polar Bear, What Do You Hear?; and really anything he’s written. One of Eric ...

In "Ends of the Earth," Neil Shubin travels north and south to explore the frontiers of polar science and history.

A hybrid of a brown and a polar bear may develop in Yakutia's north due ... Polar bears are listed in the International Red Date Book and in the Red Data Book of Russia. Specialists say, the ...

POLAR BEAR 2: Yummier than fish any day. GRANDDAD: And now they're called polar bears. Sam, a young tortoise, is hungry. Granddad Charlie tells him a story about how brown bears had to travel a ...