Quiz on Evolution and Giant Creatures

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

• 20 million

• 15 million

• 9 million

• 1.5 million

Which feature is most notable about the Spinosaurus?

• Its long tail

• Its sharp claws

• Its sail made of spinal spikes

• Its large eyes

Where were the first Spinosaurus fossils discovered?

• Australia

• Egypt

• Argentina

• Morocco

What distinguishes Brachiosaurus from other sauropods?

• Short legs and long arms

• Large head and small body

• Long front legs and upright neck

• Short neck and long tail

Where did Brachiosaurus primarily live?

• Asia

• Africa

• South America

• North America

Which group of dinosaurs does Titanosaurus belong to?

• Ornithopods

• Theropods

• Sauropods

• Ceratopsians

What is the estimated weight range of Argentinosaurus?

• 120 to 130 tons

• 70 to 80 tons

• 50 to 60 tons

• 99 to 110 tons

What is the primary diet of blue whales?

• Plankton

• Seaweed

• Krill

• Fish

How loud can a blue whale's call be?

• 120 decibels

• 140 decibels

• 160 decibels

• 188 decibels

What event is believed to have caused the extinction of many species 66 million years ago?

• Asteroid impact

• Earthquake

• Volcanic eruption

• Ice age