Editor’s note: Some amazing videos follow below.
Hooray—it’s world octopus day. Today we celebrate the excellent eight-legged creatures that grace our oceans, and occasionally even venture out of the water. (Even Aristotle knew: “the only cephalopod to go out on to dry land is the octopus.”) What other animal has three hearts, a brain-like set of nerves in each leg and blue blood?…