These extinct shelled cephalopods ruled the ocean for 300 million years. But how they swam and shaped the seas remains a mystery.
They talk about octopus behavior, fossilized cuttlefish ink, and proper cephalopod grammar.
Researchers who worked on the Event Horizon Telescope have released the first image of a black hole’s shadow. Now what?
Known since Aristotle, no one understood the argonaut octopus—until a 19th-century seamstress turned naturalist took it upon herself to solve its mysteries.
In the first major underwater film production, three key inventions helped create an iconic scene featuring an impossibly large cephalopod.