10Aristotle thought octopuses were dumb.

“The octopus is a stupid creature, for it will approach a man’s hand if it be lowered in the water.”

As with many science-y things (see: “natural” slavery, women’s inferiority, how babies are made), Aristotle was wrong on this one.

Nowadays, we know that octopuses actually hang out with humans because they’re curious and interested in what we’re up to—even when what we’re up to is undermining their intellect.

Source: The History of AnimalsExternal link