What does ';the birds and the bees'; mean?

When someone says, ';you know...the birds and the bees?'; what does that mean?What does ';the birds and the bees'; mean?
They are talking about the action between a man and a woman when they are in love or married /What does ';the birds and the bees'; mean?
ask your mommy
sex
sex
screwing
They mean the interaction between a man and a woman, and what goes on in the bedroom
sex
sex
They are talking about nature. Now go back to watching Nickelodeon.
its when the birds have sex with the bee and make ';beeds'; : )
if you don't know yet, then you are too young to know...
sex