These Things Are Washing Up On Beaches Everywhere But Where Do They Come From?

People have been seeing a lot of these things washing up on beaches lately. But what exactly are they?

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They look like something an alien being might leave behind.

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They’re actually the egg sacks of horn sharks, discarded after birth.

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They’re actually the egg cases of the horn shark. The spiral flanges catch on rocks or in crevices, keeping the egg relatively stationary and safe.

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Shark eggs take about 7 to 10 months to hatch.

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Here’s what it looks like when they finally hatch!

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Take a look on how they look alike as adults

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