Sharks have upper and lower eyelids but they do not blink.
Sharks can travel up to 40 miles per hour.
The most harmless sharks tend to be the largest.
There are 370 species of sharks.
Some sharks swim in a figure eight when frightened.
Sharks have survived on earth for about 400 million years.
A shark bites with it's lower jaw first and then its upper.
Some sharks may eat other sharks.
The hides of mature female blue sharks are more than twice
as thick as those of males.
Florida averages the greatest number of shark attacks
A shark may grow and use over 20,000 teeth in its lifetime
Almost all sharks are "carnivores" or meat eaters.