Mike and Blue

Margaret showed Jack this picture of Mike and Blue and Jack doesn't think Blue is the Daddy because Mike doesn't have the white place on his breast and because Mike has eyebrows and Blue doesn't.

Margaret told him that Heidi has eyebrows and that Mike has some of her characteristics.

I don't think that convinced Jack so maybe this picture will make him see the light.

How many dogs do you see with tails like this.  Blue is the Daddy.