· ANTS and other mini-beasts
· PENGUINS and other polar animals
· BIRDS
· RIVER ANIMALS
· BUTTERFLIES and moths
· SHARKS and rays
· CROCODILES and other reptiles
· SPIDERS and scorpions
· DESERT ANIMALS
· TIGERS and other carnivores
· ELEPHANTS and other plant-eaters
· WHALES and dolphins
· FIRST living things
· PLANT-EATING dinosaurs
· MONKEYS and apes
· PREHISTORIC mammals and birds
· NIGHT ANIMALS
· PREHISTORIC reptiles
· OCEAN CREATURES
· T REX and other flesh-eaters
在每一本书里，小小读者会进入每一种动物的世界，看牠们如何生活。到底海豚为什么会从水里跳出来？大象为什么需要长鼻子？猴子为什么能够轻松地从一支树枝跳到另外一支？为什么鲨鱼会攻击人类？书中透过动物自己的声音解释给读者。
