Download e-book for kindle: Backpack Books: 1001 Facts About Dinosaurs by DK Publishing

By DK Publishing

ISBN-10: 078948448X

ISBN-13: 9780789484482

This ebook entrances us, and our 3-year outdated son (who will hear as lengthy my voice holds out!) it truly is full of pictures of fossils, first-class illustrations, and actual details. It has not one of the silliness and sloppy considering that the majority kid's books imagine is appropriate. as an alternative, it has attention-grabbing, actual details - prepared via subject matters which are sufficiently small to slot inside a 3-year old's consciousness span, yet fascinating and academic for me, too. Todlers and adults gets as a lot info as they could grab, and all get pleasure from and examine from the nice images and illustrations.

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Additional info for Backpack Books: 1001 Facts About Dinosaurs

Sample text

Warm-blooded animals, such as mammals, produce heat from food energy, have hair for warmth, and sweat to cool down. Although dinosaurs were reptiles, much of their behavior, such as agile running, has more in common with Blood vessels Blood vessels mammals. Scientists are therefore puzzled over whether dinosaurs were warm- or cold-blooded. CROSS-SECTION OF CROSS-SECTION OF MAMMAL BONE REPTILE BONE BLOOD AND BONES Dinosaurs had bones more like mammals than reptiles. Mammal bones contain far more blood vessels than reptile bones.

Mammals were around at the same time as the dinosaurs. • The earliest dinosaurs were all carnivores. • The first herbivores appeared in the late Triassic period. Long and narrow head Scaly skin typical of reptiles HERRERASAURUS Sharp teeth EARLY CARNIVORE Herrerasaurus lived about 230 million years ago. It had many features in common with later carnivorous dinosaurs, such as sharp teeth and claws, and strong back legs. ORNITHOSUCHUS TWO-LEGGED RUNNER Ornithosuchus is the ancestor of the large carnivorous dinosaurs of the Jurassic and Cretaceous periods.

MAMMALS Mammals appeared during the Triassic period, when they lived alongside the dinosaurs. They became the dominant land animals after the dinosaurs’ extinction. SURVIVING REPTILES Crocodiles were around before the dinosaurs, and are still alive today. The reason these reptiles survived while the dinosaurs died out is a complete mystery. 60 SAURISCHIAN DINOSAURS ABOUT SAURISCHIANS 62 THEROPODS 64 DINOSAURS AND BIRDS 82 SAUROPODOMORPHS 84 61 SAURISCHIAN DINOSAURS 62 ABOUT SAURISCHIANS THERE WERE two main groups of saurischians – the theropods and the sauropodomorphs.

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Backpack Books: 1001 Facts About Dinosaurs by DK Publishing

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