It's not easy to look at a sea spider and see an animal so representative of its kind that it may help scientists sort out ...

As all seven pairs of horseshoe crab legs continued to shuffle under a dome-shaped shell, Sasson demonstrated the correct way to hold the horseshoe crab. The long, stiff tail, known as a telson ...

The best places to see them include Slaughter Beach, DuPont Nature Center, Kitts Hummock and Pickering Beach, but horseshoe crabs can be spotted up and down the Delaware beaches for most of the warm ...

What you need to know before going out After the spawning season, some Delaware beaches are covered in dead horseshoe crabs, yet stranding accounts for only an estimated 10% of horseshoe crab deaths.

Craig: So you can find Laurel’s cover story about horseshoe crab blood on C&EN’s website or in the Oct. 28 print issue of C&EN. We put a link in the show notes, along with the episode credits.

It has a thick, hard shell like a crab’s, with 4 eyes and 16 legs hidden beneath its belly. Its tail features a prominent ridge with a sharp, triangular tip. Despite its unappealing appearance, the ...

But their sharp tail, or “telson,” is not a stinger and not even a weapon; it serves only to let upside-down horseshoe crabs turn themselves right side up. No need to fear them.

Horseshoe crabs have a long, narrow tail jutting out from under a large, two-piece brown shell that has spikes to the rear. Researchers estimate that horseshoe crabs have been around for more than ...

Horseshoe crabs are not endangered or threatened in Massachusetts, but their numbers are at historic lows. To protect the species, state wildlife officials are rolling out new regulations. As of ...

Horseshoe crabs are over 400 million years old, nearly twice as old as dinosaurs. With 10 eyes and a long, spiked tail, they can be found along the Atlantic and Gulf costs.