Chimpanzees are often used in animal intelligence studies because they are closely related to humans and have a high level of cognitive ability. They have been shown to be capable of using tools, solving problems, and communicating with each other.
Bonobos
Bonobos are another closely related species to humans that are often used in animal intelligence studies. They are known for their peaceful and cooperative behavior, and they have been shown to be capable of altruism, empathy, and self-awareness.
Orangutans
Orangutans are large, intelligent apes that are native to the rainforests of Southeast Asia. They are known for their long, red hair and their gentle nature. Orangutans have been shown to be capable of using tools, solving problems, and communicating with each other.
Dolphins
Dolphins are highly intelligent marine mammals that are found in all oceans. They are known for their playful nature and their ability to learn tricks. Dolphins have been shown to be capable of using tools, solving problems, and communicating with each other.
Whales
Whales are the largest animals on Earth, and they are also highly intelligent. They have been shown to be capable of using tools, solving problems, and communicating with each other. Some whales, such as the humpback whale, are known for their complex songs.
Elephants
Elephants are large, intelligent mammals that are native to Africa and Asia. They are known for their long trunks and their tusks. Elephants have been shown to be capable of using tools, solving problems, and communicating with each other.
These are just a few of the many animals that are currently important subjects in the testing of animal intelligence. Scientists are learning more and more about the intelligence of animals, and they are constantly finding new ways to test their abilities.