A study led by Associate Professor Kelton McMahon at University of Rhode Island's Graduate School of Oceanography has found that food webs on tropical reefs are more fragile than we once thought.

Woods Hole Oceanographic Institution (WHOI) researchers have shown large sharks can spend hours deep in the oceans' mesopelagic zone, which lies 200 to 1,000 meters (650 to 3,300 feet) below the ...