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A Chaunax, a genus of bony fish in the sea toad family Chaunacidae, is seen at a depth of 1,388 meters (4,553 feet) on a seamount inside the Nazca-Desventuradas Marine Park. Image credit: Schmidt Ocean Institute ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ More than 100 new species have been discovered on an underwater mountain range off the coast of Chile. Among the never-before-seen critters seen on the expedition are corals, glass sponges, sea urchins, amphipods, lobsters, plus a gaggle of peculiar fish and squid that are already known to science (but no less strange). The discoveries come from an international group of scientists who recently...

The spiky body of a sea urchin acts as one big, spine-covered eye, confirms a new study that tested how well urchins can see. Sea urchins, like their close relatives the sea stars (starfish), don't technically have eyes. Instead, the ball-like invertebrates detect light striking their spines and compare the beams intensities to get a sense of their surroundings.