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 ...

The complicated balance of predators and prey

If you knew there was a grizzly bear sitting outside the door, you might wait a while before going to fill up your water bottle, or you might change the way you are communicating with their other people in the room based ...

Marine reserves are vital—but under pressure

A massive study of nearly 1800 tropical coral reefs around the world has found that marine reserves near heavily populated areas struggle to do their job—but are a vast improvement over having no protection at all.

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