Sea urchins are disappearing from the Canary Islands, and scientists warn the loss could trigger major changes across marine ...

New research has uncovered a mass die-off of sea urchins living in the Canary Islands—one that could signal an ongoing marine pandemic.

Sea urchins are ecosystem engineers, the marine equivalent of mega-herbivores on land. By grazing and shredding seaweed and seagrass, they control algal growth and promote the survival of slow-growing ...

With their pointy spines, sea urchins are not warm and fuzzy marine animals that people want to snuggle up to. While they are an essential part of the ocean’s ecosystem, they can puncture a person’s ...

A recent boom in the purple sea urchin population off the southern Oregon Coast appears to have had an indirect and negative impact on the gray whales that usually forage in the region, a new study ...

The sunflower sea star (Pycnopodia helianthoides) can be found throughout intertidal and subtidal coastal waters of the northeast Pacific Ocean, from Alaska to at least northern Baja California, ...

John Keane receives funding from the Fisheries Research Development Corporation and the Tasmanian Government. Scott Ling receives funding from the Australian Research Council. Longspined sea urchins ...