There are 20 quadrillion ants on Earth —that’s 2.5 million ants for every human. Known ant species (members of the family ...

Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises. All ...

Photographic reference with facts about twenty-five hundred animal species that detail animal habitats, life cycles, and conservation efforts. Includes glossary and separately paged section at the end ...