When a team of scuba-diving marine biologists explored reefs off the central coast of California, they found themselves repeatedly swimming through lush kelp forests interspersed with patches of ...

A parasite that devastated long-spined sea urchins in the Caribbean and Florida in 2022 has caused another die-off more than 7,000 miles away in the Sea of Oman. The discovery, led by researchers at ...

Sea otters have long been recognized as a classic example of a keystone species, a dominant predator that maintains the balance of kelp forest ecosystems by controlling populations of sea urchins, ...

Along the Monterey Peninsula, “urchin barrens” with no kelp (foreground) are interspersed with remnant patches of kelp forest (background). (Photo by Michael Langhans) In 2019, researchers found a ...

Ravenous, brainless and covered with spikes, sea urchins have evolved to not be messed with. Off of the south coast of Oregon, one kind of urchin in particular, the purple sea urchin, is enjoying an ...

Two Walbunja divers who were facing jail time for cultural fishing are now training to be professional sea urchin divers as part of an Aboriginal-led sea country restoration plan on the NSW south ...