How to distinguish Labrador puppies? First of all, Labrador puppies generally have a small protrusion on the top of their heads (which will disappear when they grow up). The mouth should not be slender, but should be short and thick; the ears are droopy, and the tips of the ears should be gently pulled. , it is best to meet the corner of the eye on the other side; the part where the head and tail are removed should be in a square ratio; the coat colors are only black, yellow (dark yellow, light yellow), and chocolate, and the other colors are disqualifying or impure; black Labradors are generally all black, and those with white hair on their chests are disqualified. However, they are not impure. The tail should reach the flinched hock joint.