Nem on 20 December 2013
Its been scientitifcally proved. So, yes, it is.
Beeing scientifically proved means using the scientific method to prove that same thing (proof by experiementation in an envyronment sterile of other influences that can alter the result). It wouldnt be very scientific if you could prove things that arent.
I'm pretty sure Darwin himself presented evidance with a butterfly research he did. Its been a long time... i dont recall the specifics.
But you know... you´re free to believe the version the state of Kansas gives you:
http://www.youtube.com/watch?v=GVmdCAT7Rc8
