Secondly, they aren't white.. While some double merle dogs are almost pure white, they can go the complete range all the way up to a dog that you would think is a just a normal merle (most fall somewhere in the middle).
In between five and six months, your baby usually starts to sit up with your help, holding his head in an upright position, keeping the back straight. He may even be able to sit for a second or so without taking any assistance from you, before toppling down after a while [1] .
Sixth Month Baby Milestones: Motor Skills. Your baby may be starting to sit up alone by six months. To get ready, babies first prop themselves up with their hands, but over time they can start to let go and sit unsupported. Your 6-month-old can probably roll from his back to his stomach and vice versa.