Quiz on Evolution and Giant Creatures

What is the estimated number of total species on Earth, according to scientists?

• 12 million

• 9 million

• 1.5 million

• 5 million

What distinctive feature is the Spinosaurus most known for?

• Its long tail

• Its sharp horns

• Its sail-like structure

• Its large claws

Where were the first Spinosaurus fossils discovered?

• Egypt

• Argentina

• Morocco

• China

What is a notable feature of the Brachiosaurus that distinguishes it from other sauropods?

• Thick tail

• Large head

• Longer front legs

• Short neck

In which region did the Brachiosaurus primarily live?

• Africa

• South America

• Asia

• North America

What is the estimated weight range of the Titanosaurus?

• 30 to 50 tons

• 10 to 20 tons

• 100 to 120 tons

• 75 to 90 tons

Which continent has not yielded Titanosaurus fossils?

• None, they were found on all continents

• Europe

• Antarctica

• Australia

What is the primary diet of the blue whale?

• Seaweed

• Krill

• Plankton

• Fish

How does the size of a blue whale's heart compare to common objects?

• As big as a refrigerator

• As big as a car

• As big as a house

• As big as a basketball

What is the estimated global population of blue whales as of 2018?

• 5,000 to 15,000

• 25,000 to 35,000

• 1,000 to 5,000

• 15,000 to 25,000