Horseshoe crab blood is used to test vaccines around the world. But while Europe has approved a synthetic alternative, biomedical labs are bleeding more crabs from the Atlantic coast.

Horseshoe crabs have been around for 450 million years — nearly unchanged. And their blood has helped the medical world make some fascinating discoveries. Emily Kwong talks with Ariela Zebede ...

Horseshoe crabs spawn at Reeds Beach in Cape May Court House, N.J., Tuesday, June 13, 2023. AP Photo/Matt Rourke. By PATRICK WHITTLE, Associated Press July 31, 2023 5 minutes to ...

In New York, someone can harvest up to five horseshoe crabs everyday without a permit. With a commercial permit, fishermen can harvest 150 horseshoe crabs daily as of April 2022.

Environmental groups on Monday petitioned the U.S. government seeking endangered species protection for the American horseshoe crab, a "living fossil" under threat from commercial harvests for ...

Horseshoe crabs, the blue-blooded burrowers in the genus Xiphosura, first appeared in the fossil record about 450 million years ago. Around that same time, arachnids crawled into existence.

Horseshoe crabs may be spared in the near future, however. On Friday, the U.S. Pharmacopeia, an organization that sets standards for the biomedical industry, issued guidance on using synthetic ...