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When you see a bunch of fossils in a museum, you might not think about how unlikely it is that they got there. But there's a lot of lucky dice rolls that landed that mastodon in the museum, and researchers are really motivated to find out what factors influence any organism's odds of fossilizing. Here's what we know and what we need to know.

Squeaks and Mister Brown use their imaginations to travel back in time to learn all about the very first living thing.

In the heart of Mexico, special technology has uncovered a huge, thousand-year old city the size of Edinburgh.