Scientists believe that sharks have been around for approximately how many years?
Sharks do not have bones. True or false?
What's the biggest type of shark?
Blue sharks are what colour?
What is a group of sharks called?
When attacking something, at what speed can a shark swim?
What is a baby shark called?
After eating a sea lion, how long can a shark wait until its next meal?
How far can a shark travel in a day?
How many different types of shark species are there?