The researchers went back to the island in 2010 and 2012 to collect more shark teeth. They estimate that the teeth date to the late-early or middle Eocene epoch, or about 53 to 38 million years ...

The Eocene Epoch was a time of lush forests, steaming swamps, and sprawling open plains. Earth’s climate was warmer, and continents were on the move, forming new land bridges and shifting habitats.

Proteins degrade over time, making their history hard to study. But new research has uncovered ancient proteins in the enamel ...

The teeth De Vries is working with are up to 56 million years old—they once belonged to the mammals of the late Eocene, Oligocene, and Miocene Epochs and are now preserved in museum and ...

The oldest known evidence of caries in a mammal was found in the fossils of a monkeylike animal that lived 54 million years ago. A shift to higher-sugar foods likely caused the tooth decay, according ...

Hitan" in Arabic, holds more than 400 primitive whale skeletons that offer a snapshot of the evolution of these creatures ...

It wasn't until the Eocene that mammals grew larger and expanded their diets from mostly carnivory, insectivory and omnivory to include more species with diets dominated by plants, including fruit.

This means that the remains were often broken up, with teeth now the most common finds. “Teeth are the most common mammal fossils from Abbey Wood as they are very durable. They’re often from animals ...

The two oldest-known fossil skeletons of bats, unearthed in southwestern Wyoming and dating to at least 52 million years ago, are providing insight into the early evolution of these flying mammals ...

The two oldest-known fossil skeletons of bats, unearthed in southwestern Wyoming and dating to at least 52 million years ago, are providing insight into the early evolution of these flying mammals ...