purebred tiny jack russell terrier baby dogs 3 days old. newborn puppies are drinking at the bitch

animal are baby birth bitch blind born breastmilk breed breeding canino children closed days dog dogs domestic drink drinking family feeding group isolated jack lactate litter mammal many milk mother neonate new newborn newlyborn nurse nursing offspring old pet puppies puppy purebred russell siblings small suck suckle teat terrier tiny toss whelp young