My almost 9 month old black gsd seems a little small in comparison to other dog's i've seen on the growth charts in this forum. He's 24" and 57.5 lbs. I don't know what his line is considering he was a rescue. His ribs don't stick out at all and I even have to push a little to feel them. Everyone including the vet says he's lean but I get worried they're just being nice and are trying to tell me he's underweight (he's my first dog, I've only ever had cats). I gave him a bath yesterday and you couldn't see any of his ribs when he was wet. He's on 1 1/2-2 cups of food twice a day and right now due to a sprained knee that has me on crutches can't go on walks for a month. So right now he has a very sedimentary lifestyle which from what I can tell from all his irritated biting is frustrating for him. I will try to get a decent picture of him stacked but he doesn't like it haha.