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 ...

I'm sure their tummies were rumbling too. SAM: Like who? GRANDDAD: Like the brown bears. A long, long, long, long time ago, there were lots of brown bears who lived in a forest but they had a ...