In the cold waters off Schoodic, Gouldsboro’s Springtide Seaweed, the largest organic seaweed farm in the United States, is ...

I tested what really happens when a fake foot steps on a sea urchin to see how dangerous the spines are and how they react ...

Thousands of sea urchins have mysteriously washed up dead on a French island in the Indian Ocean, leaving scientists perplexed. Around 5,000 urchins have washed up on the western side of Reunion ...

Biologists thought that marine heat waves lowered urchin reproduction only at lethal temperatures. A new study shows ...

The entire body of a sea urchin is what researchers are now calling an “all-body brain,” with neurons that function as a ...

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 ...

What you can see in this YouTube clip is very different from most of the underwater footage that you will come across online. It features a diver picking up sea urchins using a metal tool and breaking ...

The pointy shell of sea urchins hides a remarkably complex neural network that resembles the brains of vertebrates, new research suggests.

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 ...