Why is the phrase ';The birds and the bees'; related to the birth cyle?

It's simply about nature, that's what I believe anyway.


Nature taking it's course; whatnot.


If you want to be technical, you can think about how complex bees are; with polonation and making honey and whatnot; and the major complexities of the conception process.


It's all natural, I guess!Why is the phrase ';The birds and the bees'; related to the birth cyle?
I've always wondered that. What the hell do birds and bees have to do with sex and having babies?Why is the phrase ';The birds and the bees'; related to the birth cyle?
Its not, its related to the difference between boys and girls
we always used it in a sexual way---example---i'm talking to my wife and i say---i think its time we tell our daughter about the birds and bees