California's crashing kelp forest

First the sea stars wasted to nothing. Then the purple urchins took over, eating and eating until the bull kelp forests were gone. The red abalone starved. Their fishery closed. Red sea urchins starved. Their fishery collapsed. ...

Crown-of-thorns eat themselves out of house and home

A world-first study on the Great Barrier Reef shows crown-of-thorns starfish have the ability to find their own way home—a behavior previously undocumented—but only if their neighborhood is stocked with their favorite ...

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