Fearless sea urchins stripping underwater forests

A new study led by The University of Western Australia and the Centre of Advanced Studies of Blanes in Spain has found that sea urchins' fear of predators plays a key role in the health of underwater forests, which are declining ...

Researchers uncover new clues to surviving extinction

Scientists are peeking into ancient oceans to unravel the complexities of mass extinctions, past and future. A new examination of Earth's largest extinction by scientists at the California Academy of Sciences and the University ...

New study examines role of sea urchins on California kelp

California sheephead and spiny lobsters may be helping control sea urchin populations in Southern California kelp forests, where sea otters—a top urchin predator—have long been missing, according to a new San Diego State ...

These strange fossils are closely related to sea urchins

Just a few centimeters long, these animals thrived in the ocean roughly half a billion years ago. Because of their odd morphology, scientists have long struggled to find their branch on the tree of life.

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