You may be wondering why your neighbor has a horseshoe above their door. Here's what it means, where it came from, and how you can add it to your own home.

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 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 ...

The horseshoe crab bleeding industry is in transition. One biomedical company agreed to more oversight, and a regulatory group is paving the way for drug companies to use animal-free alternatives.

When and where to see horseshoe crabs. Horseshoe crabs gather on Delaware Bay beaches to spawn from May through early June, with the most seen during new and full moon high tides.