An octopus explores with its tentacles and suckers. The suckers can taste the difference between sweet, sour and bitter, and can feel if something’s rough or smooth.

The amazing octopus can change color in less than a second. Elastic bags of color, or chromatophores, cover the body of an octopus. They hold yellow, red, orange, blue or black pigments. When the tiny muscles around them contract, the colors show as large spots; when they relax, the colors shrink.

Octopuses have tremendous gripping power. It takes a forty-pound pull to release the grip of a three-pound octopus.