Wednesday, August 10, 2005

To go with the below post:

"Ten thousand years ago, there were no dairy cows, no ferret
hounds, no large ears of corn.
When we domesticated the ancestors of those plants and animals, we controlled their breeding.
We made sure that certain properties, considered by us to be desireable, were preferentially reproduced.
The enormous distended udders of dairy cattle are the result of human interest in milk and cheese. Our corn has been bred for ten thousand generations to more tasty and nutritious than its scrawny natural ancestor; indeed, it is so changed that it cannot even reproduce without human intervention.
If artificial selection can make such major changes in so short a period of time, what can natural selection, working over billions of years, be capable of?
The answer is all the beauty and diversity of the biological world.
Evolution is fact, not theory."

Carl Sagan, Cosmos, p 27


Toad734 said...

Good point, I am assuming that is true about the corn not being able to reproduce on its own?

Mike V. said...

You'll have to ask Carl Sagan.
Except that he's dead.. :)