A Handy Alphabetical List of Facts About Cephalopods

In honor of Cephalopod Week, conservation biologist Samantha Cheng of the American Museum of Natural History offers up 26 different facts and figures about these incredible sea creatures, all in alphabetical order.

How many hearts does an octopus have? Why do some squid glow in the dark? And what does a zebra display have to do with the giant Australian cuttlefish? Museum conservation biologist Samantha Cheng takes you through the world of cephalopods, from A to Z.