Beavers have harder and more acid-resistant teeth than humans because of iron in their enamel's chemical structure, according to a new study in Science. The researchers from the Northwestern ...
— Cora Wieneke, Mount Horeb, Wis. A Erin Flynn, conservation education curator at Henry Vilas Zoo in Madison, Wis.: Squirrels, beavers, chipmunks and rabbits all have similarly shaped teeth because ...
A Squirrels, beavers, chipmunks and rabbits all have similarly shaped teeth because all of those animals have teeth that continually grow throughout their lives. Just like your fingernails grow ...
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