Family and genus distinction: Squid belongs to the genus Sepia of the family Sepiaceae, while octopus belongs to the genus Octopus of the family Octopus.

Appearance difference: The squid has 10 arms, which are symmetrical.

The octopus only has eight arms, but the arms can contract at will.

Food differences: Octopuses feed on crustaceans and plankton, while squids can also eat fish and molluscs in addition to crustaceans.

IQ difference: Octopuses are smarter than squids because their brains are more developed.

1. What is the difference between octopus and squid? Many people can’t tell the difference between octopus and squid. They do have similarities, such as the ability to spray ink.

However, in fact, they are not the same kind of creatures, and the differences between them are relatively large.

The following are their specific differences: 1. Family and genus differences: Octopus and squid are two organisms from different families and different genera, and they are very different.

Specifically, octopus is a creature of the genus Octopus and family Octopus; while squid is a creature of the genus Sepia and family Sepia.

2. Appearance differences: The appearance characteristics of squid and octopus are also different.

For example, the number of their arms is different. The squid has 10 arms, which are symmetrical on the left and right. 8 of them are relatively short and 2 are relatively long. Their specific functions are different. of.

The octopus has eight arms at its base, and they can all contract freely.

3. Food differences: The feeding habits of octopus and squid also have certain differences.

Octopus mainly eats some crustacean creatures, such as shrimps, crabs, etc., and may also eat some plankton in the water.

Squids can eat a lot of food. In addition to crustaceans, they can also eat fish and some molluscs.

4. Differences in IQ: The IQs of octopuses and cuttlefish are also different. Compared with the two, octopuses are smarter. They can even be said to have "conceptual thinking" and their thinking methods are more complicated.

2. Which one is smarter, octopus or squid? As mentioned above, IQ is one of the differences between octopus and squid. Compared with the two, octopus is smarter.

Octopuses have more developed brains, and they have the ability to use their own known information to solve relatively complex problems.

Although squid have relatively developed nervous systems, their brains are not fully developed, so they rely largely on experience and feeling to make judgments.