When Mya Breitbart heard that something was killing off sea urchins en masse, she thought: Oh no, not again. The long-spined sea urchin—a fist-size ball of black defensive spines—is a crucial and ...

Purple sea urchins, beware: There’s a purple urchin-eating predator on the horizon — and its name is the sunflower sea star. That’s the plot line coming from a small upstart research facility in Moss ...

Since last year, long-spined sea urchins in the Caribbean Sea have been dropping dead with no known cause. Now, scientists may finally have found the culprit. The species, called Diadema antillarum, ...

Sea urchins in Israel's Gulf of Eilat have been dying off at an alarming rate, researchers announced Wednesday — a development that threatens the Red Sea's prized coral reef ecosystems. The massive ...

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 ...

Sea urchin larvae raised in high levels of plastic pollution die due to developmental abnormalities, new research shows. Sea urchin larvae raised in high levels of plastic pollution die due to ...

Alvaro Migotto, a zoologist at the University of São Paulo in Brazil, captured the mesmerizing video of the juvenile sea urchin as it moved across its habitat and identified the species as Arbacia ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Sperm have a unique sense of direction. The reproductive cells of ...

A woman has captivated attention online after a surfing trip in February led to weeks of pain and immobility—and then surgery in March. Pilates instructor Christina Black, 40, was surfing in her usual ...