Puppies overfill the crate .........
When puppies overfill the crate either one leaves or puppies adapt with positioning their bodies in an accommodating manner.
Here is Blue boy puppy with hyperextension of his neck which appears quite comfortable for this boy.
Green boy puppy being the biggest puppy has chosen for the spacious room outside of crate rather than be squished inside the crate with the other puppies.
Pink girl puppy keeping an eye on my camera.
Green boy puppy has decided to try inside the crate with his head hanging outside crate doorway.