[DOWNLOAD] "Ancient Predators" by Daniel Coenn ~ eBook PDF Kindle ePub Free

eBook details
- Title: Ancient Predators
- Author : Daniel Coenn
- Release Date : January 25, 2013
- Genre: General Nonfiction,Books,Kids,
- Pages : * pages
- Size : 2069 KB
Description
An animal's jaws and teeth can tell us what it ate. Meat-eating dinosaurs mostly had dagger-shaped teeth to size their prey. They probably tore off chunks of meat and swallowed them, rather than chewing.
Huge meat-eating dinosaurs, such as Allosaurs and Ceratosaurs, were especially common 150 to 130 million years ago. This was the time when the really big plant-eaters like Brachiosaurus and Diplodocus were abundant. This suggests that these were the foods of the giant meat-eaters.
Tyrannosaurus rex, at 5-6 m tall, was the biggest meat-eater ever to walk the land. It could open its mouth very wide, helped by a lower jaw that bent in the middle, and use its steak-knife teeth on its prey. The teeth of Tyrannosaurus grew to 18 cm in length. An adult Tyrannosaurus weighed up to 7 tonnes. Although Tyrannosaurus is usually shown with two fingers on each hand; nobody knows how many it really had. We do know that its relative Albertosaurus had two.
This beautifully illustrated all-color book is about the big meat-eating dinosaurs and some additional ancient predators.
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