The IQ of octopus is not very terrible, they belong to animals with higher IQ. Among invertebrates, octopuses have higher IQ, and they have more neurons than some mammals. Many people think that octopus IQ is terrible mainly because they can use tools and have strong learning ability.

If you put octopuses in plastic bottles and tighten the caps, they can unscrew the caps themselves to escape. Secondly, they have strong learning ability. When octopuses who can't use tools see their peers or other animals using tools, they will quickly learn and use them. Therefore, it is in these two points that humans think octopus IQ is terrible.

The IQ of octopus is not higher than that of human beings. Although they already belong to the animals with high IQ among invertebrates, there is still a big gap between their IQ and that of human beings. Generally speaking, the IQ of octopus is equivalent to that of human beings around 2 years old. Of course, there are also some octopuses with higher IQ, which are similar to those of humans aged 3-4.

Octopus not only have high IQ, but also their learning ability and camouflage ability are very strong. When they find similar tools, they can learn them quickly. When they hunt, they quickly change the color and structure of their bodies and hide themselves.