Q. How many teeth does a shark lose in five years?

Hi Madeleine!

From what I've read so far - sharks have many rows of teeth - thousands of teeth in total. When one falls out, another moves up and more grow back in. The best article I found was on the website Beach Chair Scientist - you can see the link below. It says that a shark loses an average of 1 tooth per week. So let's figure it out....

How many weeks in a year?  52

1 tooth per week..... 1 X 52 = 52

in 5 years .... 52 X 5 = 260    

See if you can figure it out without peeking! Use your cursor to highlight the area after the question to find out the answer!

Here are some good websites with info about shark teeth.

PowerKnowledge Life Science: Look under Animals

http://www.pklifescience.com/

Beach Chair Scientist-

http://beachchairscientist.com/2012/08/12/sink-your-teeth-into-this-20-facts-about-shark-teeth/

Fact Monster - Sharks:

http://www.factmonster.com/search?fr=fmtnh&query=shark+teeth&x=0&y=0

Shark Savers - Shark Teeth:

http://www.sharksavers.org/en/education/biology/shark-teeth1/

How Stuff Works - Sharks: 

http://animals.howstuffworks.com/fish/sharks/shark4.htm