The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures ...

Restoring underwater kelp forests by culling overgrazing sea urchins would deliver significant financial benefits, a new ...

Restoring Port Phillip Bay’s dwindling kelp forests by culling overgrazing sea urchins would deliver more than $92 million in ...

Researchers said Honaunau Bay now has an average of 51 sea urchins per square meter. This is considered to be the highest ...

Learn more about how one rescue diver–turned-conservationist is working to bring a thriving sea otter population back to the ...

The marine creatures are marching down Australia’s east coast and colonising Port Phillip Bay. But some people are determined ...

In addition to posing a threat to swimmers, sea urchins in this popular snorkeling and diving spot in Hawaii are also harming ...

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 ...

A sea-borne pandemic that wiped out sea urchin populations in the Red Sea has spread and is taking out the species in parts of the Indian Ocean and could go global, scientists in Israel say.

Sunflower sea stars — the giants of sea stars, with up to 21 limbs — eat sea urchins. In their absence, the sea urchin population proliferated. Sea urchins eat kelp, and the explosion in their ...

sea-urchin haul She lent me a custom-made tool and showed me where to look, how to measure my take, how to lob the urchin into a mesh bag underwater. I pried the urchins from their perches.

The potentially new species, which have yet to be officially confirmed, include a sea urchin, starfish and a squat lobster. The findings will be submitted to the Ocean Census , which promotes the ...