You may not know what coleoid cephalopods are, but you've definitely seen them in viral videos. They include octopuses, which can open jars from the inside; squids, which can communicate by changing color; and cuttlefish, whose camouflage skills are unparalleled. They're the smartest invertebrates on Earth, and scientists may have just figured out why: they can actually edit their own genes.
Thanks, Evolution—They'll Take It From Here
Good News And Bad News
Watch And Learn: The Most Mind-Bending Content About Cephalopods
The Weird Science of an Octopus Sucker
Watch a Camouflaged Octopus Change Color, Texture And Shape
Squid Skin with a Mind of Its Own
Key Facts In This Video
Chromatophores expand with the help of small muscles. 00:34
A squid's chromatophores can still swell and contract even after the nerves connecting them to the brain have been severed. 01:26
Chromatophores seem to open just after the neighboring ones do, and require a refractory period before opening again. 04:01
Isn't this Octopus Adorabilis?
Wake up with the smartest email in your inbox.
Our Best Articles Daily