Cuttlefish
Cuttlefish are kind of like the chameleons of the sea, with an impressive set of camouflaging skills. The cuttles are marine mollusks and masters of disguise with the ability to change their skin color to blend almost seamlessly in just about any environment. This is particularly useful in capturing prey or keeping danger away.
If a predator is able to spot the cuttlefish, the sea creatures have a backup plan. Like other marine mollusks, it uses ink stores as a smoke screen to distract and evade an enemy when attacked.