Add Yahoo as a preferred source to see more of our stories on Google. Rare trilobite larvae or horseshoe crab hatchlings on Aug. 27, 2024, at the Butterfly House & Aquarium in Sioux Falls. This ...

Crabs reproduce sexually, so sperm from a male crab must fertilize an egg from a female crab to produce offspring that are genetically different from both parents. Yet, crabs are not exactly built to ...

How does a beach in Philadelphia get overrun by 30 million horseshoe crabs every year? The answer won’t surprise you, but the specifics will. How does your shore end up with 30 million horseshoe crabs ...

Taylor Henry, 8, volunteered to count horseshoe crabs along the shoreline at midnight. He said the way the males pile on top of one another reminds him of "cuddling" with his cat, Catty. At Stage ...

Parasitic, egg-eating worms might sound like the stuff of nightmares, but they're simply a fact of life for blue crabs in the Chesapeake Bay. Interestingly, a new study published in the journal PLOS ...

At Stage Harbor in Chatham, Derek Perry, the state’s horseshoe crab biologist, walks the shoreline, counting how many horseshoe crabs fall within a 25-square-meter area. It’s not an easy task, ...

An egg-bearing blue crab found near Oyster, VA. Scientists believe the presence of an egg-eating parasitic worm may aid in the management of the fishery by revealing the number of times a crab has ...