Shark Basics

So many great questions about sharks! Click below to find the answers:

How many species of sharks are there?
How long have sharks existed?
What is an elasmobranch?
Do sharks have bones?
How long do sharks live?
What does a shark's skin feel like?
Do sharks sleep?
Do sharks have good eyesight?
Can sharks hear?
Why do sharks have so many teeth?
Why are most sharks a lighter color underneath?
Is shark meat found in supermarkets safe for human consumption?
What is the fastest shark?
What is the largest shark? What is the smallest shark?
What are sawfishes?
What do sawfish use their saws for?