7 Dinosaur Mysteries We Haven't Fully Figured Out

What is one method paleontologists use to understand dinosaur behavior?

• Reanimating fossilized dinosaurs to observe them.

• Studying direct fossil evidence like preserved hunting scenes.

• Interviewing ancient humans who lived alongside dinosaurs.

• Analyzing dinosaur DNA to predict their actions.

What is a recent hypothesis about the function of the Spinosaurus's large sail?

• It helped the dinosaur fly short distances.

• It was used to regulate body temperature in hot climates.

• It provided stability and leverage for hunting in water, similar to a sailfish.

• It was a storage unit for extra fat, like a camel's hump.

What is a common hypothesis about the purpose of the Stegosaurus's large back plates?

• They were used for digging burrows.

• They helped the dinosaur manage its body heat.

• They were primarily for defense against predators.

• They allowed the dinosaur to glide through the air.

How do paleontologists usually determine what a dinosaur ate?

• By observing its claw size and shape.

• By analyzing the structure of its fossilized teeth.

• By studying the length of its limbs.

• By examining the color of its bones.

What was the most likely use for the large claws of the Therizinosaurus?

• To pierce and grab prey.

• To dig in the dirt for food.

• To grasp and pull plants closer for eating.

• To defend against predators.

What part of a Velociraptor's eye was studied to determine if it was nocturnal?

• The retina.

• The scleral ring.

• The optic nerve.

• The lens.

What characteristic of a scleral ring is often found in nocturnal creatures?

• A smaller outer diameter.

• A wider inner diameter.

• A thicker bone structure.

• A more flexible shape.

What method do paleontologists use to guess how dinosaurs reproduced, given the lack of direct fossil evidence?

• Radiometric dating.

• Carbon dating.

• Phylogenetic bracketing.

• Genetic sequencing.