For the first time, Antarctic krill have been found on seafloor vents. One scientist is working to figure out what they are doing there. Kim Bernard, at left, is an expert on Antarctic krill, a ...

Beneath sea urchins’ exterior spines, rounded skeletons called tests are jewels of color, texture, and symmetry. There are hundreds of urchin species, and they’re found in every ocean on Earth, from ...

This secretive native of both sides of the Caribbean—from Belize to the British Virgin Islands—hides out on ledges and in caves of reefs up to 140 feet below the surface of the sea. Although not being ...