Here at Just Curious, we've taken the time to give you the rundown on everything you don't know, but might want to know, about polar bear habitats, eating habits and more. Start the day smarter.

Two-thirds of the world's polar bears could be extinct by 2050 if greenhouse gas-fueled global warming keeps melting their Arctic sea-ice habitat. The Center has led the charge to save polar bears ...

White fur, blubbery skin, sharp claws. Polar bears seem perfectly adapted to their frigid habitat up north. Now, researchers have discovered the bears have another unexpected Arctic adaptation ...