Tag «Fossil»

Fossils 101 | National Geographic

Fossils 101 | National Geographic

(gentle music) – [Narrator] Like buried treasure, they lie hidden from sight. Echoes of an ancient past, they whisper secrets and tell tales once lost to time. Fossils are remnants or impressions of ancient organisms that are naturally preserved in stone. While there are hundreds of fossil types, they are often grouped into two major …

The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs — HHMI BioInteractive Video

The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs — HHMI BioInteractive Video

[MUSIC PLAYING] SEAN CARROLL: Picture a world of giant reptiles, flying pterosaurs with 40-foot wingspans. While, beneath the waves, fierce predators called mosasaurs prowled the seas, and dinosaurs roamed the land. For more than 100 million years, creatures like these ruled the planet. And then they were gone, lost in the shadows of time. Their …