The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds. By Alexa Robles-Gil Millions of years ago, squid-like creatures called ammonites swam ...

DENVER — Life on Earth got into the shell game more than 200 million years earlier than previously thought. Fossilized eukaryotes — complex life-forms that include animals and plants — discovered in ...

How smushed shells could help to resolve paleontological mysteries. By Asher Elbein You never know where a bit of unusual scientific research is going to lead. Consider a 2012 study about turtle ...

CONSIDER the floating fortress that is a sea turtle. It seems to fly gracefully through the water even though it is encased in heavy armour. This combination of poise and protection evolved like any ...