Their fossils date back 450 million years and their copper-rich blue blood continues to benefit various medical applications. In this episode of Stuff to Blow Your Mind, Robert and Joe explore the science and history of horseshoe crabs.
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The Saguaro, Part 1
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The Monstrefact: The Alp-Luachra of Irish Folklore
04:33

STBYM Listener Mail: Cave of the Crabs
51:17