From the smallest notch on a giant fossil, paleontologists can infer the most amazing details of the long-missing parts of a dinosaur--nervous systems, vital organs, giant musculature, and even how well they can hear and see. High-tech medical equipment is now letting us see inside the head of a T. Rex and into the unhatched embryos of dinosaur eggs.
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Ready to Watch PaleoWorld, Season 4, Episode 29?