On this week's episode: is our universe inside a black hole, Antarctic explorers, tracking teenaged turtles, and ...

The oldest fossils are remains of marine organisms that populated the planet's oceans. When they died, the plants and animals were buried by mud, sand, or silt on the sea floor. Land animals and ...

These aquatic, plant-like animals related to sea stars and sea urchins are formally called crinoids. In the fossil, the hard-to-digest bits of sea lily were encompassed in chalk. Essentially ...

He combines geochemistry with the fossil record to try to understand ... comes from chemical studies of ancient sea life and sediments, Kipp said. Applying some of those methods to terrestrial plants ...

They believe the fossil is that of a prehistoric sea scorpion. They also believe it would have been the largest water predator in the area over 252 million years ago. The fossil in question was ...

During large periods of Earth's geological history, huge swaths of the United Kingdom were immersed beneath a prehistoric sea ... include shark teeth, fossil wood, and plant fossils—including ...

Now researchers have conducted the first detailed analysis of plesiosaur soft tissue, offering a more complete look at what these real-life sea monsters might have looked like when they lived from ...