An ant that disappears into the forest floor, a bird that demands attention from mates—for these animals, an inky black ...

The octopus is highly intelligent despite possessing dramatically different neurology from humans, and you can dig more into this fascinating creature here. #7 Animals That Change Color ...

(Interestingly, different animals have different color tapeta, a fact that can aid in nighttime animal identification.) One consequence of having extremely light sensitive eyes, is that they must ...