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 ...

What is an Atlantic horseshoe crab? Atlantic horseshoe crabs may appear alien, but their history as earthlings is pretty impressive. They’ve been around for 450 million years, predating the ...

For the coastal horseshoe crab, the study found that a major threat ... said the study used genetic information and models to map out the horseshoe crabs’ habitat availability and determine ...