Add Yahoo as a preferred source to see more of our stories on Google. If you have ever gotten a vaccine or received an intravenous drug and did not come down with a potentially life-threatening fever, ...

The horseshoe crab (Limulus polyphemus) is often described as a "living fossil," a species that has endured for over 450 million years. It outlasted the mass extinctions and dramatic shifts in Earth's ...

Limulus polyphemus - the Atlantic horseshoe crab, found along the Atlantic coast of the United States and the Southeast Gulf of Mexico. By Breese Greg, U.S. Fish and Wildlife Service, CC 3.0. Limulus ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more ...

A kind of spoken love song, Limulus Love is all about a most remarkable nonhuman creature: the American Horseshoe Crab (Limulus Polyphemus). Part poetry (found and original), part informational, a bit ...