Why do some animals, like octopus and chameleons, have the ability to change color, and how do they achieve this?

Question

Why do some animals, like octopus and chameleons, have the ability to change color, and how do they achieve this?

In: Biology

Answer 1

I’ve always been fascinated by whatever process is at work that can take what an octopus’ eyes sees, and then turn their skin into the matching color, texture, etc in real time. Amazing