Tyrannosaurus rex

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Tyrannosaurus rex means "tyrant lizard king" .It is also called T.Rex abbreviation. The first T. rex was first found by Barnum Brown in 1902. The first T. rex was found in Hell Creek, Montana, USA, North America.
Tyrannosaurus rex was a meat-eater about 40 feet (12.4 m) long, about 15-20 feet (4.6-6 m) tall, and about 5-7 tons in weight. T. rex probably had about 200 bones, roughly the same as us (no one knows exactly how many it had, since no complete T. Rex Skeletons have been found). About a dozen T. Rex Skeletons have been found. T. rex 's jaws were up to 4 feet (1.2 m) long and had 50 to 60 thick, conical, bone-crunching teeth that were up to 9 inches (23 cm) long. T. Rex Dung has been found containing crushed bone - its teeth were
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Paleontologist’s alternative theory is that T. rex scavenged its food from other animals ' kills. Scavengers need a good sense of smell and means of long-distance locomotion to get to the meat. There is evidence that T.rex had an acute sense of smell. Also, T. rex 's large legs would provide ample means of long-distance locomotion. There are arguments against this scavenger hypothesis. Dr. Kenneth Carpenter found a healed T. Rex Tooth mark on the tail of a hadrosaur (a duck-billed dinosaur). This is evidence that T. rex was an active predator, and not simply a scavenger. Other arguments against the scavenger hypothesis are that small eyes do not necessarily imply poor vision. Birds have relatively small eyes but acute vision. As for T. rex 's puny arms, arms are not necessary for predation; many predators have no arms at all, like sharks and snakes. As for T. rex’s speed, there were many animals that were slower than T. rex; these would become its prey, not the speedier types. The coprolite is assumed to be from T. rex because of its huge size.
T. rex lived during the late Cretaceous period, about 85 million to 65 million years ago, toward the end of the Mesozoic Era, the Age of Reptiles. During this time, the Earth was seismically active; there were many volcanic eruptions. The supercontinent Pangaea had broken up and the subcontinents Laurasia and Gondwana were drifting farther apart.
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