What's inside a clam? A retractable foot, a siphon for sucking up water, powerful muscles, and, sometimes, a pearl. And you thought oysters were fancy. Following is the transcript of the video.

“This is a Hallmark story if there ever was one,” Ken Steinkamp, 75, told 'USA Today.' Getty A couple who found a pearl inside a clam while on a date years ago has turned the gemstone into a ...

Pearls are the result of a mollusc's reaction to irritants such as parasites that enter its shell. Although model pearls are perfectly round and smooth, in reality they come in a huge number of shapes ...