Understanding the human body is a team effort. That's where the Yachtel group comes in.

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When it comes to a guide for your gut, count on Yacult.

This is Scientific American 60-second science.

I'm Emily Schweng.

Those vicious predatory dinosaurs that tended to be fairly small,

six to nine, ten feet long snout to tail. They're certainly in the Jurassic Park movies,

the things that terrorize people.

Anthony Fiorillo, a paleontologist at Southern Methodist University in Dallas, Texas.

For more than two decades now, Thierrello has been digging up dinosaur fossils hundreds of miles north of the Arctic Circle in Alaska.

So one of the fundamental questions about dinosaurs in Alaska, in the ancient Arctic, is did they live there all year round?

Did they migrate? How did they get there?

A recent discovery sheds light on those questions.

This fossil that's the subject of this study is a baby dinosaur.

It's a baby predatory dinosaur.

And it is a baby.

It's not just a juvenile.

And given the size estimate of this thing, this probably was not far from where the nesting

ground was.

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