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Are any dinosaurs still alive today?

Many, shared, evolutionary characteristics can be found in the skeletons of birds and other dinosaurs. One can follow the development of these evolutionary innovations by following along the evolutionary tree of dinosaurs from larger groups into successively smaller ones. In an evolutionary sense, birds are a living group of dinosaurs because they descended from the common ancestor of all dinosaurs. Other than birds, however, there is no scientific evidence that any dinosaurs, such as Tyrannosaurus, Velociraptor, Apatosaurus, Stegosaurus, or Triceratops, are still alive. These, and all other nonavian dinosaurs became extinct at least 65 million years ago at the end of the Cretaceous Period.

Created by American Museum of Natural History.

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Video transcript

Not only are dinosaurs still live today, you could be easily make an argument that they're more diverse than they ever have been. Living birds are dinosaurs, just like human beings are kind of primate, birds are a kind of dinosaur. Birds, based on the evidence we have, both in fossils and in comparison with living birds they probably branch off a group of, kind of, carnivorous dinosaurs we call the theropods, things that are closely related to to the animals like tyrannosaurus or oviraptor, the famous beaked dinosaur, and some of these other meat eating dinosaurs.