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this application is a live wallpaper or screensaver of dinosaurs live wallpaper set the app as live wallpaper to decorate your phone downloads dinosaurs live wallpaper from our store page. we have the best collection of dinosaurs live wallpaper. you can also download other live wallpaper in case you don’t find this lwp suitable for you, we had a vast lwp collection. one of the things that makes dinosaurs so appealing is their sheer size: plant eaters like diplodocus and brachiosaurus weighed in the neighborhood of 50 tons, and a well-toned tyrannosaurus rex tipped the scales at 7 or 8 tons. cool dinosaurs wallpaper.

from the fossil evidence, it's clear that--species by species, individual by individual--dinosaurs were more massive than any other group of animals that ever lived (with the exception of certain genera of prehistoric sharks, prehistoric whales and marine reptiles like ichthyosaurs and pliosaurs, the extreme bulk of which were supported by the natural buoyancy of water). theory 1, dinosaur size was fueled by vegetation. during the mesozoic era which stretched from the beginning of the triassic period, 250 million years ago, to the extinction of the dinosaurs at the end of the cretaceous period, 65 million years ago atmospheric levels of carbon dioxide were much higher than they are today. if you've been following the global warming debate. cool dinosaurs wallpaper. like kids at an all-day dessert buffet, sauropods may have evolved to giant sizes simply because there was a surplus of nourishment.

this would also explain why certain tyrannosaurs and large theropods got so big; a 50-pound carnivore wouldn't have stood much of a chance against a 50-ton plant eater. theory 2, hugeness in dinosaurs was a form of self-defense. cool dinosaurs wallpaper. that said, some paleontologists think gigantism conferred an evolutionary advantage on the dinosaurs that possessed it for example, a jumbo-sized hadrosaur like shantungosaurus would have been virtually immune to predation. (this theory also lends some credence to the idea that tyrannosaurus rex scavenged for its food say, by happening on the body of an ankylosaurus that died of disease or old age rather than actively hunting it down.) theory 3, dinosaur gigantism was a byproduct of cold-bloodedness. this is where things get a bit sticky. cool dinosaurs wallpaper. many paleontologists who study giant herbivorous dinosaurs believe that these creatures were cold-blooded, for two compelling reasons: first, based on our current models of metabolism, a warm-blooded mamenchisaurus would have cooked itself from the inside, like a potato, and promptly expired; and second, no land-dwelling, warm-blooded mammals living today even approach the size of the large, herbivorous dinosaurs (elephants top out at a couple of tons, max).