How Pearls Form and Which Species Makes Them

Learn how pearls form and which species make pearls. These natural lustrous gems start as irritations under the shells of wild or farmed mollusks.

Where Do Freshwater Pearls Come From?

Pearl - Wikipedia

Cultured pearl, Natural vs. Cultured, Care & Value

Free Resources to Learn About Mollusks

Oyster Shell With Pearl Photograph By Science Photo Library, 59% OFF

Why Fossilized Shark Teeth Are Black

Why Fossilized Shark Teeth Are Black

Pearl-Producing Organisms - Mollusks

ABA Therapy Explainer: What's A Functional Behavior, 46% OFF

Are Pearls Vegan? Here's What You Should Know

Strong genetic isolation of the black-lipped pearl oyster (Pinctada margaritifera) in the Marquesas archipelago (French Polynesia)

Why Fossilized Shark Teeth Are Black