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 dying in large numbers across the Caribbean, according to scientists who are racing to pinpoint the cause of the mysterious die-off. The rapid and widespread deaths of long-spined sea ...

It's very hard to kill a purple sea urchin. Starve it for years, and it will fall dormant on the ocean floor, devoid of any flesh — just an empty, spiky shell awaiting its next meal. They're like the ...

A SPECIFIC SPECIES OF PURPLE SEA URCHINS. THIS WEEKEND DIVERS WITH THE NON PROFIT "REEF CHECK" WILL BEGIN THE NEXT PHASE OF REMOVAL. THIS INVOLVES CULLING THE URCHINS... OR KILLING THEM OFF BY ...

FORT BRAGG — It was supposed to start in the spring: A two-pronged effort to test the efficacy of urchin removal — versus urchin crushing. The removal is being done by commercial divers in deep water ...

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 ...

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 ...

Sea urchins are sphere-shaped or flat creatures that live in the ocean and are completely covered in protective spines. On the tips of these spines are tiny claw-like pincers called pedicellariae.‌ ...