Watch Your Step: Study Shows Life in Tidal Areas at Risk

A clamber along a rocky tidepool may seem like a harmless way to while away the hours during these dog days of summer. But some marine scientists urge caution on behalf of the organisms that live there.

The organisms that live in the intertidal region–the zone where the ocean meets the land–appear a hardy lot at first glance: They’re pounded by the surf, live in and out of water, endure extreme temperature changes, and are blasted by sunlight.