Elephants are known for their intelligence and display remarkable cognitive abilities, including problem-solving, self-awareness, and empathy.
Dolphins are highly intelligent creatures with complex social structures, capable of communication and cooperation. They have exceptional learning abilities and have been observed using tools.
Chimpanzees are closely related to humans and exhibit impressive intelligence. They use tools, display complex social behaviors, and have a capacity for learning and problem-solving.
Ravens are considered among the most intelligent birds. They have excellent problem-solving skills, can use tools, and even demonstrate the ability to plan ahead.