Did you know a cheetah is the fastest mammal on Earth and can go from 0 to 60 mph in 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 MAMMAL RECORDS. " Motepad" entries on each recordholder add background and science information while humorous cartoons provide extra fun. Meet the gold-medalists of the mammal world!