there are two species of chimpanzees both of which are the closest living relatives to humans they make tools and use them to acquire foods and for social displays, they have sophisticated hunting strategies requiring cooperation influence and rank they are status-conscious manipulative, and capable of deception they can learn to use symbols and understand aspects of human language.
elephants exhibit mirror self-recognition and an indication of self-awareness and cognition elephants are known to use tools but are not as good as chimpanzees they are popularly thought of as having an excellent memory Elephants appear to have some the ritual around death and show a keen interest in the bones of their own kind.
several researchers rank dolphins at about the level of elephants in intelligence they are known to engage in complex play behavior and have great communication skills.
parrots are able to mimic human speech but the African grey parrots are able to associate words with their meanings and form simple sentences some species of parrots
such as the kea are also highly skilled at using tools and solving puzzles.
sheep can recognize individual human faces and remember them for years in addition to long-term facial recognition of individuals sheep can also differentiate emotional states through facial characteristics if work with patients sheep may learn their names it has been reported that some sheep have apparently shown problem-solving abilities
rats show excellent problem-solving skills they have also been found to be actively pro-social they demonstrate altruistic behavior to other rats in experiments including freeing them from cages.
dogs are pack animals by nature and can understand social structure and obligations and are capable of interacting with other members of the pack they are known to be highly intelligent and very easy to train by humans
the octopus is considered the most intelligent invertebrate they show impressive special learning capacity navigational abilities and predator techniques it has also been claimed but strongly disputed that octopuses practice observational learning.
wild hooded crows in Israel have learned to use breadcrumbs for bait fishing so1me crows have been found to engage in feet such as sports tools use the ability to hide store food across seasons and episodic-like memory
pigeons can be taught relatively complex action and response sequences and can learn to make responses in different sequences pigeons can also remember large numbers of individual images for a long time these were the 10 most intelligent animals in the world.