Weighing up to 110 pounds with an arm span of 14 feet, this behemoth navigates the dark depths of the Pacific with unparalleled grace.
Small but deadly. Its brilliant blue rings flash as a warning, carrying enough tetrodotoxin to make it one of the ocean's most venomous creatures.
Taking camouflage to a whole new level. It alters its behavior and shape to impersonate toxic animals like lionfish and sea snakes.
Octopuses possess highly complex nervous systems, with two-thirds of their neurons located in their arms. They can solve puzzles, navigate mazes, and use tools with astonishing proficiency.
Using specialized skin cells called chromatophores, they can change their color, opacity, and even texture in milliseconds to seamlessly blend with their environment, effectively becoming invisible.
An octopus has three hearts. Two pump blood through each of the two gills, while the third pumps blood through the body. Their copper-based blood thrives in cold, oxygen-poor depths.
"They are the closest we will come to meeting an intelligent alien."