http://www.theregister.com/2006/08/29/new_dino_species/
For those of you interested. I've always wondered why some species evolved the way they did, and how others different. It's amazing to me how HUGE some extinct animals were. Always brings up the Quality-versus-Quantity mentality in my thoughts.
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Yeesh, don't ya know the hollow earth theory?!
Perdy cool stuff though.
(Happy birthday by the way).
super sized kids for life!
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Oxygen in the air, to be precise. Some scientists think that the air at the time of the dinosaurs contained a lot more oxygen gas than it does today. Since the oxygen animals breathe is used in chemical reactions that power their muscles, more oxygen in the air might have made it possible for dinosaurs to get more oxygen into their muscles. That could have made them much stronger than animals todaystrong enough to carry around huge bodies. It might also explain how sauropods managed to breathe through those long, skinny necks of theirs. To see why that's a problem, try putting a drinking straw in your mouth and breathing through it. Quite a challenge, isn't it? But it would be easier to breathe if the air had more oxygen in it.
The evidence for more oxygen in the air at the time of the dinosaurs comes from bubbles in 100-million-year-old amber, tree sap that hardened during the time of the dinosaurs. By crushing the amber and analyzing the gases that come out, scientists at the U. S. Geological Survey think they can tell what the air was like back then. Other scientists who have done similar experiments, however, think the oxygen content probably was not higher. Still others suspect that dinosaurs were better at capturing oxygen because they had more efficient lungs than mammals do. That's certainly possibleafter all, birds, the closest living relatives of ancient dinosaurs, have better lungs than mammals. Until some lucky paleontologist digs up a dinosaur lung, though, nobody will know for sure.
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but really no one knows.
TGZ: you dont need oxygen, just feed them bovine growth hormone injected foods from when they are babies. then they can start puberty at 9 and 10 rather than 13 or 14.
Interesting explination, but i'm still skeptical.
Tulkamir: thanks ^.^
a t-rex was only about knee height.
But they did die out so it was inefficient way to go.
BTW largest recorded elephant weighed 12tons...
i would like to thank nature for making these things extinct. Imagine finding one of them in your back garden with its head in your dustbin
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Imagine having one poop in your yard...
when the super continent started to break up in the mid jurassic and formed separate continents, different eco systems were formed, in addition dinosaurs were able to evolve separately from one another. In the areas where vegetation became dense, the herbivores grew larger, and because the herbivores became larger, the carnivores also needed to become larger to keep up.
This went on for nearly 100 million years
We mostly only have dinosaur bones from the late jurassic, when a cataclysmic event virtually wiped them all out. Who knows how big dinosaurs would have gotten given another 100 million years to roam the planet? They might have even made an internet