Sea urchins help shape marine ecosystems by controlling algae growth on reefs. By grazing ...

A sudden, unexplained mass die-off is decimating sea urchins around the world, including catastrophic losses in the Canary ...

This video guides you through the traditional and careful preparation of live sea urchin, known as uni, prized for its rich, creamy texture and oceanic flavor. Learn the delicate process of opening, ...

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 ...

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 ...

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 ...

With spikes as long as knitting needles, long-spined sea urchins may look like underwater villains, but their appetite for algae makes them the unsung heroes of Caribbean reefs. Courtesy of the ...

The pointy shell of sea urchins hides a remarkably complex neural network that resembles the brains of vertebrates, new research suggests. Reading time 2 minutes When it comes to taking hardcore ...