Horseshoe crabs are awesome!

Bottom Dwellers

One of the most important bottom dwellers is the horseshoe crab. The horseshoe crab has been around for millions of years.

A horseshoe crab on an East Coast beach. ©VIMS.Did you know that the horseshoe crab has blue blood? They are the only animals that have a special substance in the blood that is used to test vaccines. It is so important because humans can’t make it.

The horseshoe crab is awesome!

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