Dinosaurs are prehistoric animals that lived long before humans existed. As stated by the Natural History Museum “Dinosaurs are a group of reptiles that dominated the land for over 160 million years.” There are an array of different types of dinosaurs. One of the many types of dinosaurs was the Tyrannosaurs. The Tyrannosaurs was a carnivorous dinosaur that was known to prey on small herbivores. According to Bob Strauss, a scientific author who has written many books on dinosaurs, the Tyrannosaur’s, “were the killing machines of the Cretaceous period”, while the “Sauropods were the true giants of the dinosaur family”. Some species could get up to 100ft tall and weigh up to 100 tons (Strauss). As said by Strauss, they were the dominant herbivores of the Jurassic period. Another fellow herbivore are the Ankylosaurs, Armored Dinosaurs.
Strauss explains that the Ankylosaurs are “gentle herbivores that were the Cretaceous equivalent of Sherman tanks, complete with armor plating, sharp spikes and heavy clubs”. However, while the armored...
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...e that explain the extinction of dinosaurs most of them have rock hard proof that they happened. The combined theory allows most theories to be possible. The one thing that remains a constant in all theories is that when the dinosaurs became extinct there was a shift in the climate. With numerous theories it is possible that all of them caused the extinction of the dinosaurs. Volcanoes could have been extremely active during the time of the dinosaurs causing enough soot and dust to block out the sun. An asteroid could have hit and that was just enough to force the earth into an ice age. Scientists do not exactly know why the dinosaurs died, but it is theorized that the dinosaurs died due to the environmental factors that are included in the combined theory. Why that shift happened is still a mystery, and hopefully one day that mystery will be revealed.
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