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 ...

CORVALLIS, Ore. (KTVZ) – A research team including a scientist from Oregon State University has provided the first experimental evidence that a species of endangered sea star protects kelp forests ...

Oregon has lost two-thirds of its kelp forests since 2010. Efforts to remove hundreds of thousands of purple urchins might ...

A few weeks ago, Sarah Gravem lowered a “ravenous, terrifying predator” from her boat down to the ocean floor off Sitka. Then she released it. In a slow-motion drama, sea urchins fled as a pizza-size ...

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, ...

The sunflower sea star can be found throughout intertidal and subtidal coastal waters of the northeast Pacific Ocean, from Alaska to at least northern Baja California, Mexico. Sea urchins appear to ...

Sea urchins are devouring California’s coastal kelp faster than it can reproduce, researchers said. Photo by Portuguese Gravity on Unsplash California scientists are declaring war on sea urchins. The ...

Sea stars could play a key role in protecting threatened kelp forests, according to new research from University of Oregon and Oregon State University scientists. The study, published Wednesday in ...

Graduate student Nikita Sridhar shows the underside of a sunflower star, with stomach protruding and urchin spines stuck to its arms. (Meredith Redick/KCAW) Alaska has no shortage of marine predators ...

Researchers have provided the first experimental evidence that a species of endangered sea star protects kelp forests along North America's Pacific Coast by preying on substantial numbers of ...

Oregon State University biologist and diver Sarah Gravem motors past Sitka on her way to a kelp forest she is monitoring. (Photo by Jake Metzger) A few weeks ago, Sarah Gravem lowered a “ravenous, ...

CORVALLIS, Ore. – A research team including a scientist from Oregon State University has provided the first experimental evidence that a species of endangered sea star protects kelp forests along ...