2 posts tagged clams

9th May 2013
Pearl formation in mollusks is actually a sort of defense mechanism. Pearls are formed when a bit of sand, grit, or any foreign object makes its way between a mollusk’s mantle and shell. The clam recognizes the object as an irritant and coats it in layers of nacre (what the inside, pearlescent part of clam shells are made out of), making a larger, but less rough and prettier version of the intrusive object.
The round pearls you see used in jewelry are cultured by humans inserting small, perfectly round objects into a certain species of freshwater oysters to make them produce perfectly spheroid pearls. It’s essentially an art of perpetually annoying the oysters to have them produce beautiful things.
(Source)

Pearl formation in mollusks is actually a sort of defense mechanism. Pearls are formed when a bit of sand, grit, or any foreign object makes its way between a mollusk’s mantle and shell. The clam recognizes the object as an irritant and coats it in layers of nacre (what the inside, pearlescent part of clam shells are made out of), making a larger, but less rough and prettier version of the intrusive object.

The round pearls you see used in jewelry are cultured by humans inserting small, perfectly round objects into a certain species of freshwater oysters to make them produce perfectly spheroid pearls. It’s essentially an art of perpetually annoying the oysters to have them produce beautiful things.

(Source)


I am Ashley, an incredibly introverted 21-year-old environmental enthusiast.
I'm studying to be a marine biologist, but I live near the Great Lakes rather than the ocean.
I have a fierce love for all living things, a very broad sense of humor, and I'm probably too passionate for my own good.
Herein you'll find animals (especially creepy-crawlies), nature, science, art, some of my own photography, and probably more things about my personal life than you would care to know.
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