What type of animal is a shark?

What is a shark's skeleton made of?

Which of the following sharks is the largest?

Which shark is often called the “garbage eater” of the sea?

Which shark species can survive in both saltwater and freshwater?

How many gill slits do most sharks have?

What do baby sharks called?

Which shark is the second-largest in the world?

How many teeth do sharks have in their lifetime?

Which of these sharks is NOT real?