Can microevolution in dogs be proven without "speculation"? I am debating a fellow on a different website, and I'm worried my answer will not be as technical or correct. So, I'm asking for some help from the more learned minds that roam this place. : ) """Me: Mutations occured in the domestication of dogs. Him: Can you present a reference? With all due repect...everything you have posted has been nothing but speculation. Why do you present speculation as fact?""" This is my question to you: Can microevolution in dogs be proven without "speculation"? ""Me: We see mutations occur from generation to generation (microevolution). Him: Where??? Either post a reference or retract that statement."" Now, I know my statement is true. Microevolution occurs from generation to generation. I just don't know how to construct definitive and powerful response. I would greatly appreciate your help, anyone's help. Thanks.