Did people and dinosaurs live at the same time?

No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs. Many scientists who study dinosaurs (vertebrate paleontologists) now think that birds are direct descendants of one line of carnivorous dinosaurs, and some consider that they in fact represent modern living dinosaurs. This theory remains under discussion and shows that there is still much we don't know about dinosaurs.

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Fossil star corals
December 1, 2006

Fossil star corals, Key Largo, Florida

Colonies of fossil star coral (Montastraea annularis), still in growth position, exposed in a road cut about 3 meters above sea level (Muhs, D.R., Simmons, K.R., Schumann, R.R., and Halley, R.B., 2011, Sea-level history of the past two interglacial periods: New evidence from U-series dating of reef corals

Image: Dinosaur Tracks
July 27, 2006

Dinosaur Tracks

Dinosaur tracks in the Jurassic Moenave Formation. It is a popular site for tourists to stop and meet local Navajo and Moenkopi Hopi guides who lead short tours through the tracks area.

Attribution: Ecosystems
Image: Fossilized Tree Trunk
August 1, 2004

Fossilized Tree Trunk

Fossilized tree trunk on a a ridge along the Missouri River, near Fort Kipp, MT.

Image: Mammoth Fossils

Mammoth Fossils

Excavation of the initial Columbian mammoth remains found at the Ziegler Reservoir site.

Attribution: Land Resources
Image: Mastodon Fossil

Mastodon Fossil

Denver Museum of Nature and Science personnel excavate a large mastodon tusk at the Ziegler Reservoir site.

Attribution: Land Resources