Board Thread:General Discussion/@comment-28933504-20151216004432/@comment-25588272-20151217130526

PrixyBandicoot wrote:

The genetics could change the mouse to be deformed, as in having three legs, or one ear. These are bad for mice, as they use all of their body to survive. (I dunno how, but this turned into a huge debate.) In that case, that trait wouldn't go far, as natural selection would kill off the mice with that anomaly before they could reproduce enough to cover a portion of the mouse population.