RE: What do you know today that you didn't know yesterday?
June 19, 2023 at 9:29 pm
(This post was last modified: June 19, 2023 at 9:35 pm by Anomalocaris.)
Analysis of the photoreceptors in the cuttlefish eyes shows there are no provisions for reacting differently to different colors. This strongly indicate their eyes are not equipped to distinguish between different color. That cuttlefish can’t see color is amply confirmed by many behavioral experiments which require cuttlefish to distinguish otherwise identical objects by their color in order to obtain food.
Yet cuttlefish has the ability to quickly change their own color, and uses this ability to signal to other cuttlefish and also to camouflage themselves against background,
How cuttlefish can use color for display and for matching the color of their background without being able to see in color with their eyes is a mystery.
Yet cuttlefish has the ability to quickly change their own color, and uses this ability to signal to other cuttlefish and also to camouflage themselves against background,
How cuttlefish can use color for display and for matching the color of their background without being able to see in color with their eyes is a mystery.
