The Tyrannosaurus rex primarily used its teeth to defend itself. The T-rex was a predator, and the structure of its teeth and skull allowed it to defend itself well.
The Tyrannosaurus rex had very large teeth. These teeth were conical and serrated, which allowed it to bite into flesh and grip it strongly. This dinosaur's strong neck muscles also contributed to its biting ability. Scientists estimate that the Tyrannosaurus rex could eat up to 500 pounds of meat in one bite. The dinosaur probably crushed and broke the bones of its prey as it ate. The Tyrannosaurus rex had a jawbone that was, on average, at least 4 feet long, which was extremely large for a dinosaur.
Each adult Tyrannosaurus rex had 50 to 60 teeth in its mouth. Some teeth were small, while others were more than 9 inches long. If a tooth broke, a new tooth would grow in to replace it. For this reason, an adult Tyrannosaurus rex could have had many different sizes of teeth at any given time.
The Tyrannosaurus rex probably did not use its arms as a primary defense. While it could grab prey with its forearms, these arms were too short to reach its mouth. The dinosaur also had eyes that aided it in predation. It had proper depth perception and eyes that faced forward in its skull, which gave it the advantage of enhanced visual acuity to spot prey.Learn More
Dinosaurs became extinct about 65 million years ago. This extinction event occurred between the Cretaceous and Tertiary periods and wiped out about 50 percent of all other organisms then living on the planet.Full Answer >
Individuals who believe that they have found a fossilized dinosaur bone in an outdoor area should avoid touching it and instead take a photo and make note of its exact location using a map before making contact with a natural history museum such as the Smithsonian National Museum of Natural History in Washington, D.C. However, this procedure is not legally binding, particularly if the fossil is discovered on private land, though moral obligation may tell a different story. In the United States, individuals who find a fossil on their land are not required to report or hand it over to any authority.Full Answer >
Though scientists haven't yet found a true dinosaur that lived in the water, there were aquatic animals that lived at the time of the dinosaurs and are considered dinosaur-like. Some of their names are Plesiosaurus, Elasmosaurus, Macroplata, Kronosaurus and Peloneustes. These animals lived in the Mesozoic era. Other water-dwelling faux-dinosaurs were Ichthyosaurus, Temnodontosaurus, Stenopterygius and Ophthalmosaurus. These lived from the middle Triassic period to the early Cretaceous period.Full Answer >
Littlefoot is a brontosaurus, more properly called an apatosaurus. National Public Radio explains that the brontosaurus never actually existed. The first apatosaurus was originally reconstructed with the wrong skull. When complete apatosaurus skeletons with the correct skulls were later identified, they were mistakenly given a new name, the brontosaurus.Full Answer >