That's Fit

When polar bears are pregnant, they spend three critical months of the pregnancy hibernating in a snow den. Sounds ideal, doesn't it? During that time, they don't eat or drink anything, and yet they still manage to create a perfect little polar bear, who is born shortly after the mama comes out of hibernation. Cute story, right? But to scientists, it's more than that--it's a miracle.

Think about it: How does a polar bear have the resources to build strong baby bones without eating for three months? Pretty remarkable, huh? And it could mean a world of difference to women suffering from osteoporosis. Researchers are looking into ways to replicate the bone-building abilities of polar bears in older women, who are particularly prone to the disease.

But it will be a long time coming before we know how to build bones in humans as effectively. In the meantime, protect yourself from osteoporosis by eating well, getting your calcium and exercising regularly.