How turtle shells evolved… twice – Judy Cebra Thomas

Meet Odontochelys semitestacea. This little creature spends its days splashing in Late Triassic swamps with a host of other reptiles. Under the surface lies its best defense against attack: a hard shell on its belly. Odontochelys is an early ancestor of the turtle. Its half-shelled body illustrates an important point about the modern turtle: it […]

Our short-sighted inner fish: Vision explains why our fish ancestors came on to land

Almost 400 million years ago, some adventurous fish made a huge leap that eventually led to the evolution of humankind. They decided to come up on land We humans probably would never have evolved the intelligence we have today if not for that move onto land. Why? Because it vastly improved our eyesight. According to […]

Why Megalodon (Definitely) Went Extinct

About 8 million years ago, a little baleen whale was swimming in the warm coastal waters of Peru. It was only about 3 or 4 meters long, about the size of a Beluga whale, and while it filtered mouthfuls of plankton-rich water, it was unaware that just below it swam a predator. Like the great […]

When Fish First Breathed Air

385 million years ago, the land was all but empty. The continents were home to only some sparse plants and fungi, and a few pioneering arthropods. Life in the oceans, however, was booming. The waters teemed with squid, bony fish, and sea scorpions. But there was one group of fish that was about to go […]

When Sharks Swam the Great Plains

If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnant of what was a uniquely fascinating environment. It’s all prairies and cities now, but long ago, it was rife with exotic, aquatic life. It was full of ammonites, colossal clams, and toothy […]

Mosasaur Shark Attack – Reign of the Dinosaurs

Otro de los ganadores de la evolución. Un asesino, tanto ahora como antes. Un mosasaurio pesa diez toneladas. Puede nadar a una velocidad de hasta 48 kilómetros por hora. Y es muy, muy letal.

Amazing River Fossil hunting trip March 2016 with Mosasaur Shark Mastadon

hello YOUTUBE! We are here at the river going to go fossil hunting see what we can find. And I was expecting the water to be flowing and it’s moving pretty good right over there but it’s not moving is not as high as when I thought it was so it’ll be pretty easy I’ve […]

In Search of Fossil Fish

Welcome to Fossil Lake! The area I’m standing in right now is the largest and most complete representation of early Eocene life in the world, about 52 million years old. This area, during the early Eocene, was a lot like what modern Florida is today. You had crocodilians, you had paddlefish, all different kinds of […]