There are about 300 species of octopuses and another 300 species of squid in the world’s oceans, and they all have some resemblance to one another. In its stead, they developed a host of other adaptations such as the ability to camouflage, strong, flexible arms, and heightened intelligence to survive and thrive. Unlike their cousins, the snails and the nautilus, squids, and octopuses evolved and no longer require the use of a hard shell for body protection. All of them have symmetrical bodies, prominent heads, no vertebrae, and tentacles or arms. The largest member of this family is the giant squid, while the smallest is the pygmy squid. Apart from squids and octopuses, the cephalopoda also includes snails and nautilus. One of the main reasons why squids and octopuses look so similar is because they belong to the same family of marine mollusks called cephalopoda. Let’s take a look at some of the similarities and differences that can help you differentiate between the two.Īlso Read: Flounder vs Halibut – All You Need to Know Biological Classification That, however, does not mean that they are one and the same. This is mostly because squids and octopuses have similar physical attributes from that prominent head to those tentacles and even their swimming mannerisms. Can you categorically differentiate between a squid and an octopus? Don’t worry you would be forgiven for confusing one for the other.
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