Discover the amazing animals you have never heard of! From iridescent-rainbow snakes to transparent ‘glass fish’, metre-long giant salamanders, flying frogs, poisonous birds, fish that crawl onto land, sea slugs that photosynthesise and mammals that lay eggs! What on Earth? explores over 90 groups of unusual but amazing creatures that will astound young readers. Each animal group is depicted through beautiful imagery and documented through easy-to-read by detailed text that is filled with interesting facts and information. The opening pages of this work provide an overview of life on Earth, its context in paleo-history, the taxonomy of organisms that exist today, an overview of the main terrestrial and aquatic biomes, and detailed sections on the key animal groups covered here (amphibians, birds, fish, invertebrates, mammals and reptiles). What on Earth? will fascinate young readers interested in nature, geography, biology and conservation. It is intended to inspire awe at the diversity of the natural world and the variety of the organisms that call our Earth home.