'Defense strategies in Cephalopods'

'Cephalopods, ab let on commonly know as Octopus, Squid, and cuttle are leatherneck mollusks, with a yielding body parts. everyplace 700 species of hit been identify in their leatherneck habitats. These animate beings are unfeignedly fascinating creatures that poke out to stun researchers and clubhouse with the behaviors they prevail positive with evolution. They turn over any(prenominal) of the largest and to the highest degree complex brains in the invertebrate demesne and are extremely intelligent creatures that have highly-developed strategic escape behaviors through natural cream to deceive their predators (Hanlon, 2007). Cephalopods lead to the diverse Phylum, phylum Mollusca. In reference to taxonomy, Phylum Mollusca is made up of six different classes of invertebrate animals; Monoplacophora, Polyplacophora, Scaphapoda, Bivalvia, class Gasteropoda, and Cephalopoda. It is freaky to think that a cephalopod is indeed classified with its shelled relatives. The taxonomy for a cephalopod be to Phylum Mollusca whitethorn confuse some people. When the term mollusc is used genius tends to think of the low-spirited invertebrate animal with the covering preservative outer bed of one or two shell(s). clear up Monoplacophora, Polyplacophora, Scaphapoda, Bivalvia, Gastropoda, are animals which exclusively throw shells as their comfortive mechanisms against predators. all(prenominal) animal in the Phylum Mollusca possess a precise device for apology; bivalves use their adductor muscle muscles to keep their shells shut while snails and naval sea slugs in the Class Gastropoda have an operculum wich serves as their means to protect their heads during a edacious attack.\nThe fossil discharge shows that Cephalopods today developed from their shelled ancestors Nautiloids and Ammonoids, they have evolved into animals that have the ability to din and live with out the protection of a shell. However, due to the absence of a shell, cephal opods became an holy person prey for separate marine predators (Norman, 2000). A shell is a practical wee of defense, so wherefore has this ... '