The Cuttlefish

The cuttlefish possesses a very complex eye structure. At this point it is out of the question for it to miss its prey. The better your eyes see around you, the more you have to conceal yourself. It has 10 limbs, all of which possess muscular sucker discs. It can swim quickly or slowly. It moves by forcing water from a siphon beneath its head. With its hydrodynamic shape which allows it to progress without encountering water resistance, the cuttlefish is one of the fastest-moving sea creatures. Some species are capable of swimming at 33 km an hour. The secret behind such great speed is a network of protein fibers woven through its body. Thanks to the strength and elasticity of these fibers, it is able to pump water very quickly.

There is one very important point here which needs careful attention: the working principle of today's jet propulsion engines is exactly the same as that of the cuttlefish. A technique which mankind only began to imitate in the 20th century has been used by the cuttlefish for millions of years.