October 21, 2015 Unusual fish that 'walks' holds clues to animal evolution An unusual species of fish that can walk and breathe air shows that these animals may be more capable of adapting to life on land than previously thought, researchers say.
October 21, 2015 Amazon's biggest fish faces threat of extinction Measuring 10 feet long and weighing in at more than 400 pounds, it's hard to imagine that the arapaima, the largest fish in the Amazon River basin, could ever go missing.
October 21, 2015 Red fish, blue light: How glowing sea creatures change color Deep-diving fish have a problem: The only light that penetrates their watery environment is blue and green hardly enough of a palette for flashy color patterns.
October 21, 2015 Brainy fish remember tasty treats for 12 days Move over, chimpanzees there's a new brainiac in town, and this one has gills.
October 21, 2015 Photos give rare look at strange, deep sea life A crushing dive into the ocean's darkest realms has revealed surprising differences among the marine life that populates the Pacific Ocean's deepest depths
October 21, 2015 Squeezing sponges out of an evolutionary 'first,' DNA study points to jelly-like creatures Sponges are getting squeezed out of a distinctive role in evolution. A new study says they don't represent the oldest branch of the animal family tree after all.
October 21, 2015 Mystery of mass squid 'suicides' possibly solved Thousands of jumbo squid have beached themselves on central California shores this week, committing mass "suicide." But despite decades of study into the phenomenon in which the squid essentially fling themselves onto shore, the cause of these mass beachings have been a mystery.
October 21, 2015 Vampire squid are sea's garbage disposals Despite their name, vampire squid are not deep-sea bloodsuckers. In fact, new research finds these mysterious creatures are garbage disposals of the ocean.
October 21, 2015 For sex-changing fish, size matters in urchin battle A sex-changing California fish is growing bigger and gobbling up more sea urchins after a decade of being protected from fishing, a new study finds
October 21, 2015 Scary fanged cannibal fish washes ashore alive Visitors to Jennette's Pier in Nags Head, North Carolina, were shocked last week when an evil-looking fanged fish washed up alive on the shore.