This is an in-depth look at chelonians, the shelled reptiles that have existed since the time of the dinosaurs.Features: a fascinating fact-filled journey through the amazing world of turtles, tortoises and terrapins; looks at all the most weird and wonderful species, from those with necks like snakes and noses like pigs to those with shells as flat as pancakes; special feature pages focus on the giant tortoises of the Galapagos and Aldabra Islands, vicious snapping turtles, the nests of the green turtle, rare chelonians, and more; and, ideal reading for 8- to 12-year-olds.From vast oceans and remote islands to the searing heat of the desert, turtles and tortoises have adapted to almost every environment.There are hundreds of different species of this group of reptiles - known as chelonians - which range in size from the enormous leatherback sea turtle to the tiny speckled Cape tortoise, which is small enough to fit in your hand.Informative, lively text complements more than 180 beautiful images, making this a fascinating reference guide for use both at home and in the classroom.