Horseshoe crabs used to be everywhere. Millions of years before dinosaurs roamed the planet, each spring, the hard-shelled creatures gathered to mate in massive mounds along the beaches of the ...

When thinking about the kinds of animals that are legally protected, arachnids probably aren’t the first that come to mind—let alone horseshoe crabs, the giant prehistoric animal that now resides in ...

With copper-blue blood prized by modern medicine and a body plan older than dinosaurs, the horseshoe crab reveals how ancient ...

PORTLAND, Maine — A primordial sea animal that lives on the tidal mudflats of the East Coast and serves as a linchpin for the production of vital medicines stands to benefit from new protective ...

Horseshoe crab blood is used in medical testing. The Indianapolis Zoo and Eli Lilly are among those advocating for a shift to synthetic alternatives. Horseshoe crab blood has been used in medical ...

Next time you spot the smooth helmet-like shell of a horseshoe crab by the beach, you might want to say “thank you.” Horseshoe crabs ensure the safety of every vaccine, pacemaker and biomedical device ...

The decline in the horseshoe crab population isn't the only reason for this. But the International Union for Conservation of Nature determined the crabs have become moderately depleted along the ...