I wonder if this is true for all animals - I've heard that dogs have a "slippery" genome where genetic changes are more likely. I also wonder if there is a low

I wonder if this is true for all animals - I've heard that dogs have a "slippery" genome where genetic changes are more likely. I also wonder if there is a lower rate of fertility and a lower rate of fetal survival; is there literally "survivorship bias" here.