genetics
A T. Rex skeleton on display at the Field Museum of Natural History in Chicago, Illinois. |
Molecular analysis confirms T. Rex's evolutionary link to birdsPutting more meat on the theory that dinosaurs' closest living relatives are modern-day birds, molecular analysis of a shred of 68-million-year-old Tyrannosaurus rex protein -- along with that of 21 modern species -- confirms that dinosaurs share common ancestry with chickens, ostriches, and to a lesser extent, alligators. |
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