Skeleton season may be just around the corner, but the skeleton age dawned with the early Cambrian Period, about 538 million ...

Celebrate the first day of summer by learning how seashells form and what they can tell us Megan Kalomiris Not only is this regal murex seasnail shell stunning in appearance, but the stark contrast ...

Shells provide good protection for turtles, but that may not be why those shells originally formed. Denver paleontologist Tyler Lyson says the shells evolved because the turtles' ancestors, ancient ...

Many microbes wear beautifully patterned crystalline shells, which protect them from a harsh world and can even help them reel in food. Now scientists have zoomed in on the very first step in ...