#20 Orangutans

These guys are not only quite cute, but they are also capable of some truly complex tasks which, of course, takes the accompanying complex cognitive abilities to carry them out.

#19 Pigeons

When someone says “bird brain” it’s usually not a compliment, however, we also know that pigeons have long been used by people for their amazing skills when it comes to matters of geo location.

#18 Crows

…And another bird makes the list.

Studies have shown that crows are very capable problem solvers.