Answers

Question 2:
Correct answer: 65 million years ago
Dinosaurs went extinct about 65 million years ago, at the end of the Cretaceous period.

Question 3:
Correct answer: Pterodactyl
Pterodactyls are not dinosaurs. They were a group of flying reptiles that lived at the same time as dinosaurs. There were no flying dinosaurs.

Question 4:
Correct answer: Dromaeosaurids
The smartest (also some of the fiercest) dinosaurs were Dromaeosaurids. They had the largest ratio of brain weight:body weight (encephalization quotient or EQ). They included the Utahraptor, Velociraptor, and Deinonychus.

Question 5:
Correct answer: Sir Richard Owen
Sir Richard Owen (1804-1892) was a British comparative anatomist who first coined the term dinosauria, from the Greek "deinos" meaning fearfully great, and "sauros" meaning lizard.

Question 6:
Correct answer: an asteroid hitting the earth
The most widely accepted theory is that a large asteroid, several miles in diameter hit the Earth about 65 million years ago. This caused changes in the earth's atmosphere killing much life on earth.

Question 7:
Correct answer: Cretaceous
The Cretaceous period (144-65 mya) is the last period of the Mesozoic Era when dinosaurs were at their height. It ended with the extinction of dinosaurs and many other prehistoric creatures.

Question 8:
Correct answer: Triceratops
Triceratops was a rhinoceros-like dinosaur that had three horns on its face. It also had one of the largest skulls of any land animal ever discovered.

Question 9:
Correct answer: Supersaurus
The largest dinosaurs were sauropods, large quadrupedal, herbivorous dinosaurs with long necks, small heads, and long tails, which included Ultrasauros, Brachiosaurus and Supersaurus. Ultrasauros was probably about 82-100 feet long, 52 feet high, and weighed 55 to 130 tons.

Question 10:
Correct answer: Unknown
It is impossible to say since an animal's skin colors are produced by organic pigments which are not preserved in fossils.