Puppies at 4 week of age

Puppies now  weight 23 oz. and 24 oz.  They are both up and "toddling" around, although they are still a little shaky on their feet.  They recognize your voice and when spoken two will immediately come wobbling towards you.  Their little tails are up -- used something like a "rudder" for balance -- but not entirely over their backs yet.  But these little tails will wag when they hear your voice.  They both have developed a tiny little bark.  They are still getting their meals from mom, but with their toddling around the 3ft x 3 ft exercise pen they live in they have discovered mom's water dish and dry food.  They can be seen tentatively putting their heads in each dish checking out what is there.  They have started to roll and play with each other, and as each day goes on they are becoming increasingly active.