Crocodiles, alligators, caimans, gila monsters – these creatures all have dinosaur ancestries dating from 94 million years ago. There is something elemental and scary about a crocodile, with its tough scaly skin, long powerful tail, conical, peg-like teeth and vicious bite. And these creatures can still be found in every part of the world. Arranged by continent, Crocodiles, Alligators & Lizards introduces the American alligator, an apex predator that swims the coasts, estuaries and swamps of southeast USA feeding on fish, amphibians, reptiles, birds and mammals; the black caiman, which can grow up to an enormous 6 metres (20ft) in length and prefers the habitat of the slow-moving rivers and lakes of the Amazon basin; the frilled lizard, which spreads its frilly neck when threatened or to impress other lizards; the gila monster, whose two- tone camouflage colouring allows it to easily blend into its desert habitat; and the Komodo dragon, which can run up to 20km/h (13mph) over short