What animal figured out how to eat a porcupine? Which creature smells like popcorn? How can cheetahs run so fast? From the colossal blue whale to the tiny pygmy shrew, plus lions, hippos, polar bears, sea otters, quokkas, orangutans, dolphins, and more, check out the 200-plus mammals in this colorful encyclopedia!

The world of mammals -- Meat-eating mammals -- Hoofed mammals -- Mammals with pockets -- Toothy mammals -- Oceangoing mammals -- Monkeys and more -- Mammal oddities.