An American mastodon jaw at the State Museum in Albany. An illustration of a Columbian mammoth, which roamed a tundra-like environment tens of thousands of years ago in New York. A Columbian ...

Mastodons and mammoths do have some similar physical features - they're both large mammals with a trunk, tusks and stocky legs and both have hairy coats,' Adrian says. 'The key difference is that the ...