My Jaxon is a 2 1/2 year old yorkie-poo. He started out looking just like a yorkie-he starting turning silver after a year old. We have had 2 yorkies before & were going to get another when we saw him. He was 4 1/2 months old & weighed 2lbs 2oz when we took him home. He now weighs around 5lbs-sometimes a little more. He is the most loveable & trainable dog we have had, compared to the full bred yorkie.....Must be the poo!