Just how smart are octopuses? One is put to the test in this watch-and-learn challenge. | National Geographic Animals

1.1K views · 27 reactions | Have you ever seen an octopus change color? The giant Pacific octopus can change its appearance to mimic rocks and patterned coral! They have special pigmented cells just below the surface of the skin that allow it to camouflage with its environment as a defense mechanism. | The Living Planet Aquarium | Facebook