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Those vicious predatory dinosaurs that tended to be fairly small,

at six to nine, ten feet long snout to tail,

they're certainly in the Jurassic Park movies, the things that terrorize people.

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

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

So one of the fundamental questions.

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, so this is the first physical proof that at least some dinosaurs nested in the

ancient Arctic. Some of the first Arctic dinosaur remains ever found were discovered back in the

1960s in Sfallbard, an archipelago north of mainland Norway. Since then researchers

have theorized that dinosaurs must have migrated to avoid deeply cold winters.

But Fiorillo says this new discovery disproves that idea.

Well, you know, the classic stereotype for dinosaurs is that had been that they

were living in subtropical environments oftentimes somewhat swampy.

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