With so many of you asking us questions about octopus eyes and their vision on our Facebook and Instagram posts, we wanted to share some more fun facts about cephalopods and their eyesight!
With octopuses, each pupil is controlled by 7 extraocular muscles, each controlled by its own nerve. This allows them to rotate their eyes by up to 80 degrees in either direction.
When you say they have big eyes… how big are we talkin’? Relative to their body size, octopuses generally have large eyes. Take the Common Octopus (Octopus vulgaris) as an example!
Octopus eyes contain one type of light receptor, which only allows them to see black and white.
Octopuses have dumbbell-shaped pupils that act as prisms, scattering white light and splitting it into its color components. This effect is called chromatic aberration!
Octopus possess short and long-term memory, which means they can observe and remember people and various animals.