A sudden, unexplained mass die-off is decimating sea urchins around the world, including catastrophic losses in the Canary ...

For many years scientists have believed they understood how closely related species that occupy the same regions of the ocean were kept from interbreeding. It turns out they were only seeing part of ...

The reproduction, or duplication, of the centrosome is an important event in a cell's preparation for mitosis. We sought to determine if centrosome reproduction is regulated by the synthesis and ...

Sea urchins help shape marine ecosystems by controlling algae growth on reefs. By grazing ...

It's one of the most fundamental processes in an animal's life cycle: the swift, tense race among sperm to reach and fertilize an egg. Now new research into how the process works in sea urchins has ...

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

Arbacia punctulata, the purple-spined sea urchin, is native to the western Atlantic Ocean along the eastern coast of the US and the Gulf of Mexico, where it usually lives on rock or shell substrates.

Sea urchins are dying off worldwide from an unknown disease, threatening reef balance and sparking urgent efforts to identify the pathogen.

New research from the University of Washington's Friday Harbor Laboratories shows that common assumptions about sea urchin reproduction don't hold true for all species of the invertebrate ...