Divers may think that this is just a yummy piece of pie. But if they get close enough to take a bite... It's tentacle time!

Researchers are attempting to replicate this amazing ability in order to create materials which will allow users to blend into the background. This has many practical appliations, like protecting kids from being called on in class or allowing government workers to avoid helping you.

For those looking for Octopus Pie, it's over here