Bottlenose Dolphins: Bottlenose dolphins have among the largest brains in the animal kingdom. Characterized by their advanced communication skills, they have also been considered to be self aware with the ability to recognize themselves in a mirror.
Octopus: They are known as the most intelligent. Octopus are highly skilled hunters who use well developed strategies when finding food.
Chimpanzees: Aside from the fact that chimpanzees look like humans, these animals also have the capacity in some ways to think like humans.
Dogs: Although intelligence levels vary across breeds, in general they learn new skills easily and are quick to respond to human training.
Parrots: They famous for having an ability to talk. They also have excellent memories and like many others on this list are capable of solving relatively complex problems.