Did you know a cheetah is the fastest mammal on Earth and can go from 0 to 60 in about 3 seconds? Did you know the world's laziest mammal is the koala, which needs to sleep 22 hours each day? These and many more incredible facts are revealed in "Amazing Book of Mammal Records." "Notepad" entries on each record holder add background and natural science information while humorous cartoons provide extra fun.