The primitive compound eyes of a horseshoe crab are one the largest to be found in nature. In contrast to many insects and spiders that build their eyes from glassy proteins, the horseshoe crab uses ...

Horseshoe crab populations have crashed and their habitat is disappearing. Advocates say Endangered Species Act protections are urgently needed.(Courtesy Gregory Breese/USFWS) When you walk down the ...

The best time to see the ancient wonders that are horseshoe crabs is now, as they return to Delaware Bay beaches for spawning season. Horseshoe crabs first developed 540 million years ago in the ...

Interstate fishing regulators are limiting the harvest of a primordial species of invertebrate to try to help rebuild its population and aid a threatened species of bird. Fishermen harvest horseshoe ...

DAVID: YOU’RE LOOKING AT MEDICINE’S WARNING BELL. HORSESHOE CRABS. THE ALARM ISN’T IN THESE ANCIE SEA CREATURES’ NINE EYES, NOR THEIR INKY, WIGGLY 12 LEGS, OR EVEN THEIR MENACING-LOOKING TAIL JUTTING ...

Conservation groups argue horseshoe crabs should be listed as an endangered species to help protect their habitat and reduce harvesting. Almost two dozen conservation groups are asking federal ...