Children’s teeth act like tiny time capsules. The hard layer inside each tooth, called dentine, sits beneath the enamel and ...

A collection of dinosaur teeth hailing back to the Cretaceous and Jurassic periods has given scientists a new window into the ...

A previously unexploited source of information is now throwing new light on Earth's climate during the age of dinosaurs.

Forever chemicals are made by bonding carbon isotopes to the element fluorine, which almost never happens in nature. Once the molecular bonds form, they are virtually unbreakable. The researchers’ ...

Another study at Columbia University's Lamont -Doherty Earth Observatory used isotopes of carbon found in fossilized sea shells to determine what made that hothouse time so hot. It turns out that ...