Nature has a lot to offer to humans. Most precious jewelry is made from metals and stones buried deep within the Earth’s surface but the discovery of these rare jewels is not just limited to land. The ...

For centuries, researchers have puzzled over how oysters grow stunningly symmetrical, perfectly round pearls around irregularly shaped grains of sand or bits of debris. Now a team has shown that ...

Pearls begin as irritants within oysters, which respond by slowly covering the foreign object with layers of nacre. This controlled biological process, influenced by environmental factors and diet, ...

A perfect pearl, formed not in an oyster but in a coconut, was exhibitedlast week in Florida by Botanist David Fairchild. One of a dozen foundin 9,000,000 East Indian coconuts, the pearl began ...