NOVA Science - How smart are animals?

How Smart Are Animals?
Dogs, dolphins, parrots, and even octopuses (mere mollusks!) may be smarter than you think.

  • How Smart Are Dogs?

    Meet an extraordinary Border collie and other dogs that are changing our view of canine intelligence.

  • How Smart Are Dolphins?

    These brainy marine mammals can "read," plan ahead, and communicate in astounding ways.

  • How Smart Is An Octopus?

    Hold your fork—octopuses and other mollusks are more intelligent than you may think.

  • Profile: Irene Pepperberg

    One woman's 30-year relationship with an African gray parrot transformed our understanding of bird intelligence.