Ranks the intelligence on animals based on the animals ability to communicate in a complex way and the ability to perform difficult tasks.

Includes index. "A Rubicon book published in association with Scholastic Canada"--T.p. verso.

Introduction: birt brain? -- Octopuses -- Corvids -- Pigs -- Dogs -- Cats -- Monkeys -- True parrots -- Elephants -- Dolphins -- Great apes -- We thought -- What do you think?