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 form when oysters coat irritants with nacre over years. Learn how natural and cultured pearls are created and why oysters matter.
Pearl oysters are an important animal for farming in Japan as they produce the beautiful pearls, which are of economic value. But, in the last 20 years, a combination of different factors, such as ...
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