Sea urchins are dying across the Caribbean at a pace scientists say could rival a mass die-off that last occurred in 1983, alarming many who warn the trend could further decimate already frail coral ...

Sea urchins are the “lawnmowers of the reefs,” a University of Florida scientist says. They tirelessly chew down the algae ...

Add Yahoo as a preferred source to see more of our stories on Google. This image released by SOMM TV shows a sea urchin just harvested off the Channel Islands from the documentary "The Delicacy." Sea ...

Transgenic sea urchins are fluoresced to make it easier for researchers to track cell movement. (Sandy Huffaker / For The Times) Consider the sea urchin. Specifically, the painted urchin: Lytechinus ...

Off the Northern California coast, there is a crisis beneath the waves. The kelp forest – seaweed that provided habitat and food for much of life in the ocean – is gone, wiped out by an exploding ...

South of Tampa Bay, in Florida, wedged between a quiet neighborhood and a mangrove forest, custom-designed aquariums are home to thousands of sea-urchin larvae that tumble and drift through the water.

In Northern California, purple sea urchins are decimating kelp forests. Though the species of urchin causing problems may vary by region, the damage is the same. NNehring/iStock This article is from ...

They're purple, spiky and voracious, and just off the West Coast, there are more of them than you can count. Purple sea urchins have exploded in recent years off California, covering the ocean floor ...

With implications reaching beyond the sea and into the human womb, researchers at UC San Diego’s Scripps Institution of Oceanography in La Jolla say they have achieved a breakthrough in genetics ...

Jon Holcomb had been diving for urchins for more than three decades, but he’d never seen a downturn like the one that started in 2013. The valuable red urchins that lived off the coast of northern ...

NEWPORT, Ore. — Tens of millions of voracious purple sea urchins that have already chomped their way through towering underwater kelp forests in California are spreading north to Oregon, sending the ...