several puppies voraciously suck on their mother`s teats for milk. about a month old in age

several puppies voraciously suck their mothers teats milk month old age nesting litter group den many newborn whelp offspring siblings animal young cute breastfeed hungry drinking teat lactate feed suckle nursing nutrition dog mixed breed aspin mutt motherhood mother bitch maternity pet small weeks voracious healthy outdoors yard similar looking ravenous outside brown wean hyper