The larger squid can weigh more than 1000 pounds. Squid is the head footed (cephalopod) animal which has no feet, their head is the most important feature, and they have three hearts. They catch the prey with their arms, then inject the prey with venom which paralysis it, dissolves and loosens meat with saliva. They catch the food with their two tentacles and eat in pieces. Their size ranges from 1cm to more than 5m in length Octopus don’t have fins, except for few who found in deep water Octopus live in the saltwater and dens on the seafloor Squids live in the saltwater and open oceans The body of an octopus does not possess a skeleton So, the differences between the squids and octopuses are discussed below Comparison chart BasisĪ squid is a cephalopod which has a long, soft, thin body with eight arms and two extra tentacles.Īn octopus is a cephalopod with a round head, soft body and eight arms.Ī squid has a robust structure generally known as a pen, which acts as a flexible backbone On the other hand, squid will have ten of these appendages, eight are arms and two are tentacles, and the shape of the head of a squid is triangular. An Octopus can be well-known for its eight arms and has a roundish head. The main difference between squids and octopus is physical structure and behaviour of these animals. Squids and octopuses live in saltwater, and their blood is blue as it contains copper. Squids and Octopuses are cephalopods which means they both are head footed aquatic animals.
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