Before 2013, divers on North America's west coast rarely saw purple sea urchins. The spiky animals, which are voracious kelp eaters, were a favorite food of the coast's iconic sunflower sea stars. The ...

Rebecca Vega Thurber does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

Stunning microscopic footage has captured the moment a translucent baby sea urchin crawled across a bed of red algae. The video earned fifth place in the annual Nikon Small World in Motion competition ...

Seas around Japan about 5C warmer, research shows Fish, seafood catch hit by climate change, boosting prices Household spending on food highest in 43 years Climate change on central bank's radar due ...

On a research expedition off the coast of Rapa Nui, or Easter Island, a new species was discovered. Hal Cooks via Unsplash Rapa Nui, more popularly referred to as Easter Island, is known for its ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. This specimen is a Purple-spined Sea Urchin, which is a species of urchin found in the western Atlantic Ocean. Like ...

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 ...

HAWAII ISLAND (HawaiiNewsNow) - A popular area for snorkelers and divers on Hawaii Island has seen an explosion of sea urchins that are threatening to push the coral reef “past the point of recovery.” ...

The turquoise water of Hōnaunau Bay in Hawaii, an area popular with snorkelers and divers, is teeming with spiny creatures that threaten to push the coral reef “past the point of recovery,” new ...

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 ...

Large populations of spiny sea urchins are invading Hawaii’s coral reefs, placing these essential underwater ecosystems at severe risk. Recent studies show that reefs may be eroding faster than they ...