Did You Know?
Biology is both exciting and unique. Monday through Friday, I'll post an interesting biology fact. From bacteria to mammals, we'll explore the exciting world of biology. If you have a suggestion, send email to Regina. For current facts, please see the Did You Know? page.
Monday, September 27, 1999
Did you know that...
on average, a person spends about 122 days out of a year sleeping?
For other facts see:
Did You Know - September Archive
