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DINOSAUR TRIVIA III

21) What dinosaur name means "covered lizard?"


Stegosaurus means "covered lizard" in Greek. This dinosaur had a double row of protective plates covering its back and tail. In addition to acting as a protective covering, these plates may have operated as a sort of cooling device -- wind flowing between the plates would have helped lower the body temperature of a Stegosaurus on hot days. The Stegosaurus is known to have grown as tall as 12 meters (40 feet) and weighed as much as 5 tons.

22) What dinosaur is believed to have weighed up to 110 tons?


The Argentinosaurus, an herbivorous sauropod and quite possibly the largest animal ever to walk the earth, is believed to have reached lengths of up to 45 meters (150 feet) and weighed as much as 110 tons! Only fragmentary remains have been discovered, but using their knowledge of related dinosaurs, scientists have been able to estimate the size of these specimens of Argentinosaurus.

23) How long were the arms of an average Tyrannosaurus Rex?


An average Tyrannosaurus Rex had arms that were only about 1 meter (3 feet) long. However, with a 1 1/2 meter jaw filled with 50 to 60 nine-inch serrated teeth, the T-Rex may not have needed to use his hands much! Bite marks on other fossils suggest that he could bite through solid bone! And if he broke a few teeth here and there, no big deal -- new ones continually grew in to replace those that he lost. Standing up to 15 meters high and weighing more than 5 tons, Tyrannosaurus Rex was massive -- but he was not the largest carnivorous dinosaur. Giganotosaurus was even bigger.

24) When did dinosaurs first appear?


Dinosaurs first appeared during the Triassic period. Although the exact origin and timing of the evolution of dinosaurs is the subject of active research, the current scientific consensus places their origin between 231 and 243 million years ago.

25) How many claws did a velociraptor have on each hand?


Velociraptors, like other dromaeosaurids, had three strongly curved claws on each hand. The second digit was the longest of the three digits, while the first was shortest.

26) What paleoartist produced a classic painting of Triceratops facing off against Tyrannosaurus rex?


Charles R. Knight (1874-1953) was an American artist best known for his influential paintings of dinosaurs and other prehistoric animals. Knight's most famous work depicts the classic confrontation between the horned dinosaur Triceratops and its deadly adversary Tyrannosaurus rex.

27) How much meat could Tyrannosaurus rex eat in one bite?


Scientists believe this powerful predator could eat up to 500 pounds (230 kilograms) of meat in one bite--about the size of an adult male tiger.

28) Which of these dinosaurs was a meat eater?


Dromaeosaurus was a small carnivore, about 2 meters in length and 15 kg (33 lbs) in weight. Its mouth was full of sharp teeth, and it had a sharply curved "sickle claw" on each foot.

29) What kind of dinosaur is the Toronto-based NBA basketball team named after?


The Toronto Raptors are a professional basketball team based in Ontario, Canada.

30) What does "dinosaur" mean?


Dinosaur means "terrible lizard". The name was invented in 1842 by Richard Owen, who knew they were not lizards, but thought that they may have been derived from them.

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