These are Lovey’s pups at about 2 weeks old. Their eyes had just opened. Light colored when they first open, they turn darker within a week or so.
Puppies are born looking for a warm body to put under their chin. This instinct keeps them bunched up and warm at a time when their survival depends on keeping bunched up and warm. Hours I’ve spent watching puppy piles as each one tries to end up on top.