Mid-ocean creatures control light to avoid becoming snacks
Friday, November 11, 2011 - 17:30
in Biology & Nature
If you're a snack-sized squid or octopus living in the ocean zone where the last bit of daylight gives way, having some control over your reflection could be a matter of life and death. Two transparent cephalopods have been found with the ability to quickly change to opaque in the presence of predators who use flashlights.