With their pointy spines, sea urchins are not warm and fuzzy marine animals that people want to snuggle up to. While they are an essential part of the ocean’s ecosystem, they can puncture a person’s ...

Consider the sea urchin. Specifically, the painted urchin: Lytechinus pictus, a prickly Ping-Pong ball from the eastern Pacific Ocean. The species is a smaller and shorter-spined cousin of the purple ...

Marine biologists at Scripps Institution of Oceanography at UC San Diego have created a line of sea urchins whose genetic makeup is fully mapped and can be edited to study human disease genes. The ...

Sea urchins, which seem to spend their lives idly attached to undersea rocks, were considered simple creatures without eyes, ...

The loss of one iconic species, sunflower sea stars, unleashed a voracious eater of seagrass habitats and upended the coastal ...

South of Tampa Bay, in Florida, wedged between a quiet neighborhood and a mangrove forest, custom-designed aquariums are home to thousands of sea-urchin larvae that tumble and drift through the water.

A team of scientists say they’ve figured out the cause of a devastating sea urchin die-off that occurred last year along the waters of the Caribbean Islands and Florida. The algae-eating sea urchins ...

Ecologically important Diadema africanum almost eliminated by unknown disease in Canary Islands A marine pandemic is bringing some species of sea urchin to the brink of extinction, and some ...

It used to be thought that sea urchins only had a primitive nervous system, but new research has found that they are far more complex than that. The entire body of a sea urchin is what researchers are ...

A mysterious epidemic that began in the Mediterranean at the start of the year looks set to wipe out all of the Mediterranean and Red Sea’s urchins, and possibly their coral reefs too. When you ...

This article was originally featured on The Conversation. After four years of digging for fossils in a churchyard in York, Pennsylvania, amateur paleontologist Chris Haefner made an intriguing find.