British beaches have all the usual suspects like shells, seaweed, and maybe the odd crab scuttling for cover. But look a little closer, and the shoreline starts to feel more like another planet.

About 5,000 species of crustaceans in the order Isopoda live in Earth’s oceans. According to the National Oceanic and Atmospheric Administration, they all have two pairs of antennae, compound eyes, ...

Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet below the surface. Underwater robots give researchers a glimpse at some of ...