Research led by a physicist at the University of California, Riverside, shows how viruses form protective shells (capsids) ...

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 ...