Rabbits require large amounts of calcium, because their teeth — like those of squirrels, beavers and kangaroos — grow continuously. Until now, researchers assumed that wild rabbits ...

Naturally, a large amount of calcium is required to grow teeth at that speed, but it has been suggested that rabbits may actually use their own teeth as a calcium source. The grass and vegetables ...

The animals' teeth are constantly being worn down due to their tough diet. But rather than losing calcium this way, they could be recycling it to help grow their teeth back up to size ...

Rabbits' teeth grow continuously, and bunnies wear them down by munching fiber-rich foods. Scientists suggest rabbits recycle a fine powder resulting from this constant grinding to fuel tooth growth.