Squid is a fish resource of a large group of cephalopoda animals or mollusca species that live in marine waters. The name cephalopoda in greek means "head of the foot" this is because its legs are separated into a number of hands that encircle the head. Squid including invertebrate animals that have no bones in the body (not in spine). This animal has an amazing ability to move shrewdly because of a very interesting system. Its soft body is covered by a thick protective layer under which large amounts of water are sucked and sprayed by strong muscles, allowing the squid to move backwards.
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