Belyaev’s Foxes: A thread about a geneticists experiment, what it teaches us about dog breeds, and why #pitbulladvocates are wrong. One staple of every #pitbulladvocates argument is that pitbulls only look mean or dangerous, that behavior and temperament isn’t in anyway linked to appearance, therefore it’s wrong to judge pitbulls by their appearance. Except when we look at the evidence, we see it isn’t true.