1. Chimpanzees: Chimpanzees are highly intelligent primates known for their complex social behaviors, tool use, and cognitive abilities.
1. Dolphins: Dolphins are intelligent marine mammals known for their problem-solving skills, communication abilities, and social behaviors.
1. Elephants: Elephants exhibit advanced cognitive abilities, such as self-awareness, empathy, and memory, making them one of the smartest land animals.
1. Octopuses: Octopuses are highly intelligent invertebrates known for their problem-solving abilities, use of tools, and camouflage techniques.
1. Crows: Crows are intelligent birds known for their problem-solving skills, tool use, and ability to adapt to different environments.
1. Pigs: Pigs are surprisingly intelligent animals with excellent memory, social cognition, and the ability to learn complex tasks.
1. Parrots: Parrots are known for their intelligence, mimicry skills, and ability to learn and understand human language to a certain extent.
Border Collies: Border Collies are highly intelligent and trainable dogs known for their herding instincts .