Add Yahoo as a preferred source to see more of our stories on Google. Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet ...

Perhaps it was hiding from predators. Or trying to catch food. Then again, maybe it just wanted to be left alone. By Elizabeth Preston Like a scarf out of a magician’s sleeve, the squid appeared.

Cephalopods—the class of animals that comprises octopuses and squids—are ubiquitous throughout the ocean, including in the deep sea. However, researchers still don't know very much about the ...