Reporter, Video and Editing: Linnea Hoover

These 445-million-year-old "living fossils" play a crucial role in medical testing with their unique blood properties, prompting conservation efforts along Ocean City shores.

Horseshoe crabs have roamed the Earth for 445 million years; they can be a sight straight out of some people's nightmares. 

“I think that the average person that spends time on the beach might see one of these things crawling around and feel like it's some type of hideous creature,” said James Logsdon, another volunteer with the Maryland Coastal Bays Program.  

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