Animals come in an astounding diversity of forms. Some differences are so profound that it is difficult to imagine how they arose. What sequence of events enabled the shared ancestor of a jellyfish ...

A surprise discovery in a remote Australian desert region has given us new clues into the evolution of complex animal life, dating back more than 500 million years. The numerous fossils of the animal ...

It doesn't appear dramatic at first glance. A spherical fossil discovered on dry ground in central India, one of many found ...

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 ...