Blue blood from horseshoe crabs is needed for medicine, but a declining bird relies on crabs to eat Horseshoe crabs spawn at Reeds Beach in Cape May Court House, N.J., Tuesday, June 13, 2023.

Environment Blue blood from horseshoe crabs is valuable for medicine, but a declining bird needs them for food The horseshoe crabs have been harvested for use as bait and medicine from Florida to ...

Horseshoe crab blood is key to making a COVID-19 vaccine—but the ecosystem may suffer. Conservationists worry the animals, which are vital food sources for many species along the U.S. East Coast ...

Every year, horseshoe crabs are harvested for their blue blood, but alternatives are now coming through that could help ...

The horseshoe crab’s reproductive cycle is not just a natural wonder; it’s a vital link in the coastal food web. Ancient Eyes with Modern Secrets.

Predating dinosaurs, the horseshoe crab has roamed the earth for 445 million years, surviving five mass extinctions and three ice ages, but overfishing and habitat loss pose the greatest challenge ...

Horseshoe crabs are often referred to as the "living fossils" of our planet—the four known species, including three in Asia and one in North America, remain nearly identical to their ancient relatives ...

Horseshoe crabs visiting the shore of Reeds Beach in New Jersey to lay eggs. Under the new proposal, the fishing industry would be allowed to catch a total of about 150,000 female crabs for bait ...

June 20 marked International Horseshoe Crab Day. While that day has passed, horseshoe crabs remain one of the most important ...

Horseshoe crab egg density, the number of eggs per square meter on the beach, in Delaware Bay has declined significantly since the 1980s. Back then 40,000 eggs per square meter was the average.

The Atlantic horseshoe crab, the species harvested on the East Coast, ranges from the Gulf of Maine to Florida. The International Union for Conservation of Nature lists the species as being ...