There's a strong likelihood that an octopus is as smart as your average dog. Research has shown that the brain capacity of a giant Pacific octopus is roughly the same as that of a dog. In fact, octopuses like to play with dog toys!

Are octopus the smartest animal?

The very smart octopus can navigate their way through mazes and solve problems quickly. The octopus is the only invertebrate animal to make our list of the world's most intelligent animals.

What is the #1 smartest animal?

1: Chimpanzee

Topping our list of smartest animals is another great ape, the chimpanzee. The impressive intellectual abilities of this animal have long fascinated humans.