IQ is a complex concept, and the IQ of different species cannot be directly compared with human IQ in strict equivalence. However, scientific research and observations do show that some animal species exhibit intelligence and cognitive abilities comparable to humans.
The following are some rough equivalent comparisons of human IQ. These are based on common observations, research, and generalizations, but should still be treated with caution because different types of intelligence vary greatly between species.
Great apes (chimpanzees, gorillas, orangutans): IQ is equivalent to that of a 3-4 year old child. Great apes are thought to have high intelligence, with the ability to use tools, learn language and demonstrate empathy.
Cow whale: IQ is equivalent to that of a 4-5 year old child. Cow whales possess remarkable social and cognitive abilities among marine mammals.
Gorilla: IQ is equivalent to that of a child about 4 years old. Gorillas have high intelligence and are able to solve problems, use tools, and display complex social behaviors.
Dogs and cats: IQ is equivalent to that of a 2-3 year old child. Pets such as dogs and cats are able to understand simple commands and display a level of emotional intelligence.
These equivalent comparisons can only provide a rough idea, because the intellectual performance and abilities of different species are quite complex. Each animal has its own unique cognitive abilities and methods, which are sometimes difficult to measure by a single standard. Therefore, these comparative data are for reference only and cannot be regarded as strict scientific standards.