1. Cephalapods

2. The Senses
-Cephalapods are the most highly developed of all marine invertebrates
-They have large complex brains (that can solve problems)
-A nervous system with giant nerve fibers
-Their eyes are similar to vertebrate eyes
-They can sense gravity with specialized structures called statocysts

3. Movement
-They can squeeze through any space as long as it is as large as their eye
-They use jet propulsion to move:
Mantle contracts
Water is shot out of the funnel
-Fins are present to help with streamlining (some are capable of flying through the air 50m!)

4. Camouflage -They can change colors almost instantly
-This is done with chromatophores- groves of cells that have pigments in them
-They can also change their shape and skin texture
-They can use this ability to communicate

5. Intelligence -They can learn by watching (observational learning)
-They can be trained with positive reinforcement (reward system)
-The demonstrate flexibility in behavior (adapt to situations)
-They have been trained to navigate mazes
-When threatened they eject ink to create a pseudomorph (false image) to escape.