Download e-book for iPad: Dinosaurs: A Very Short Introduction Animals Pets by David Norman (Author)

By David Norman (Author)

ISBN-10: 0192804197

ISBN-13: 9780192804198

ISBN-10: 1429459646

ISBN-13: 9781429459648

The recognition of dinosaurs turns out by no means finishing, fuelled through movies reminiscent of Jurassic Park and documentaries like strolling with Dinosaurs. but such a lot books fail to give an explanation for the tale in the back of the intriguing clinical discoveries that experience given us an image of the way dinosaurs regarded, what they ate, and the way they moved and interacted with each other. this can be the 1st publication to inform the overall reader approximately what is rather taking place in glossy dinosaur learn. New ways contain the mix of many components of technological know-how, comparable to anatomy, cosmology, physics, mechanics, and engineering layout to piece jointly the facts of the way animal and flowers advanced on the earth, and why it did so within the manner that it did. the writer additionally highlights the half that educated hypothesis and success have performed in significant discoveries relating to dinosaurs. beginning with historic myths of dinosaur-like monsters, akin to dragons, and the heritage of the invention of dinosaurs, Norman is going directly to speak about the evolution of those attention-grabbing beasts. He additionally describes the numerous various suggestions used to appreciate them, together with the newest digital fact animation sequences and engineering layout research.

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Extra info for Dinosaurs: A Very Short Introduction Animals Pets

Sample text

Dinosauria’. Owen identified three dinosaurs in this report: Iguanodon and Hylaeosaurus, both discovered in the Weald and named by Mantell; and Megalosaurus, the giant reptile from Oxford. He recognized dinosaurs as members of a unique and hitherto unrecognized group on the basis of several detailed and distinctive anatomical observations. These included the enlarged sacrum (a remarkably strong attachment of the hips to the spinal column), the double-headed ribs in the chest region, and the pillar-like construction of the legs (see Figure 10).

Both had enormous bodies and the tiniest of brains (even Marsh remarked in disbelief at the ‘walnut-sized’ brain cavity of his Stegosaurus). So lacking in brainpower was Stegosaurus that it was deemed necessary to invent a ‘second brain’, in its hip region, to act as a sort of back-up or relay station for information from distant parts of its body, thus confirming the ‘stupid’ and ‘lowly’ status of dinosaurs beyond reasonable doubt. While the weight of comparative evidence undoubtedly sustained this particular perception of the dinosaur, it ignored, or simply 49 Dinosaur renaissance To help demonstrate that this view was correct, Roy Chapman Andrews had discovered that Mongolian dinosaurs laid shelled eggs, and Louis Dollo (among others) had identified impressions of their scaly skins; so their overall physiology would be expected to resemble that of living reptiles.

The narrowness of each foot ( just two walking toes, rather than the more stable, and more usual, ‘tripod’ effect of three) suggests that its sense of balance must have been particularly well developed; this is further supported by the fact that this animal was bipedal, and clearly able to walk while balanced on two feet alone (a feat that, as toddlers prove daily, needs to be learned and perfected through feedback between the brain and musculoskeletal system). Linked to this issue of balance and coordination, the ‘terrible claw’ on each foot was clearly an offensive weapon, evidence of the animal’s predatory lifestyle.

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Dinosaurs: A Very Short Introduction Animals Pets by David Norman (Author)

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