The interior of the shell is perfect for a sea worm called a sipunculan, which looks a lot like a peanut. A spinuncula acts as the coral’s ‘legs,’ digging it out of trouble and moving it to ...

Exactly how does coral make its skeleton, a sea urchin grow a spine, or an abalone form the mother-of-pearl in its shell? A new study at the Advanced Light Source at the Department of Energy's ...