killer whales are the animals with the highest intelligence quotient except humans. It is generally believed that primates are smarter, such as chimpanzees, but killer whales have an IQ 2.5 times that of chimpanzees. Killer whales have high IQ because they have certain hardware advantages, that is, the ratio of brain nerves to body is higher, so their IQ is higher. However, killer whales are limited to their bodies and living environment, and their mastery of tools is weaker than that of primates.

1. Developed brain: The reason why killer whales have high IQ is that their brains are particularly developed. Killer whales' brains are similar to human brains, with deep sulci, which are in charge of emotion, memory and language, among which memory, learning and emotion are the most developed areas.

2, high comprehension: The killer whale's comprehension is very high, which is manifested in many of its behaviors. Many animals can't distinguish themselves in the mirror, and they will think of them as their own kind, but killer whales can successfully distinguish them. Moreover, although killer whales have never seen animals such as pigs, cattle and sheep, they will take the initiative to attack, but not humans.

3. Language function: Killer whales are animals with language function. Although this language is very primitive compared with human language, it can communicate effectively between the same kind, which can also help them hunt a lot.