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The Ultimate T. Rex as Predator or Scavenger Quiz
by Staff
The Tyrannosaurus rex has a nasty reputation as an evil man-eater. But was that really the case? Was the Tyrannosaurus rex a predator or really a scavenger? Take our quiz to learn about the cases for and against.

What kind of gait did the Tyrannosaurus rex (T. rex) have?

  • upright
  • bipedal
  • tripedal

Where did the T. rex rank in its ecosystem?

  • as the largest carnivore
  • as the second largest carnivore
  • as one of the smaller carnivores

What kind of teeth did the T. rex have?

  • serrated
  • pointy
  • smooth

What do scientists estimate was the biting power of a T. rex's jaws?

  • 2,364 pounds to 3,112 pounds (113,200 newtons to 149,000 newtons)
  • 3,822 pounds to 6,788 pounds (183,000 newtons to 325,000 newtons)
  • 8,765 pounds to 9,863 pounds (419,670 newtons to 472,200 newtons)

What do long thigh bones in an animal indicate?

  • that the animal was agile
  • that the animal was tall
  • good running endurance

What was the purpose of the triceratops's bony frilled neck?

  • It was a defense mechanism.
  • It was a beauty feature.
  • It helped protect them against inclement weather.

Where did the triceratops get its name from?

  • The pleats on its neck frill.
  • It's three toed feet.
  • The three horns on its head.

When did the idea that the T. rex may have been a scavenger originate?

  • in the 1600s
  • in the 1900s
  • in the 1990s

Which theory is the basis for the theory that T. rex may have been a scavenger?

  • The theory that birds originated from dinosaurs.
  • The theory that dinosaurs were gentle animals.
  • The Alvarez theory.

What was the tooth structure of a T. rex's bite?

  • The upper teeth met the inside of the lower teeth.
  • The tops of the lower teeth met the tops of the upper teeth.
  • The lower teeth met the inside of the upper teeth.

What would a T. rex's large nasal passages have served for according to the scavenger theory?

  • They would be able to use their jaws for attacking, while still getting in enough air through their nose.
  • It would have enabled them to smell carrion from afar.
  • It would enable them to sense danger using more than just their sense of vision.

What is coprolite?

  • dinosaur protein strands
  • dinosaur bone marrow
  • fossilized dinosaur dung

What aspects of the T. rex's physical structure would have made running a challenge?

  • its small feet
  • its short forelimbs
  • its heavy torso

What do studies suggest was the T. rex's speed while running?

  • 22 mph (10 meters per second)
  • 44 mph (20 meters per second)
  • 66 mph (30 meters per second)

How much carrion would have been needed for a dinosaur to live on?

  • one carcass a day
  • the amount of carrion found in the Serengeti today
  • 500 kilograms (1,100 pounds) per week

What is further evidence that the T. rex may have been a predator?

  • weak digestive systems that would not have been able to tolerate decaying meat
  • lack of other dinosaur fossils in the vicinity of a T. rex fossil, indicating that other dinosaurs avoided them
  • evidence of bite marks on other dinosaurs

What does Kenneth Carpenter, of the Denver Museum of Natural History, say about the T. rex's arms?

  • They were strong.
  • They were puny.
  • They were a hindrance.

Which animals preys on other animals despite not having arms?

  • alligators
  • hyenas
  • snakes

What else would a T. rex have bitten?

  • trees
  • its kin
  • its eggs

What do many scientists conclude about the T. rex?

  • It was a scavenger.
  • It was a predator.
  • It was an opportunist.