The law of conservation does not apply to babies

It's true.  The law of conservation states that in a closed system, mass will be conserved.  It might be converted to a different form (like energy) but it doesn't magically disappear or appear.  This, however, does NOT pertain to babies. Examples:

Sleep Volume - a small baby, that fits comfortably in his tiny bassinet with room to spare will take up 5 times as much space when placed in a bed with his parents.  

Liquid Mass - regardless of how much liquid intake an infant has, his output - be it in the form of drool, pee, or spit up - will be easily twice what was consumed.  

I'm reasonably certain that babies some how tap into extradimensional spaces, perhaps via a worm hole.  It must be something we forget how to do as we get older ...

My child, the cannibal

What is the definition of parent? Someone covered in baby goo. For the first couple of months, this was generally pee from leaky diapers. Then it was spit up. Now, we have entered the drool phase. This phase is characterized by JJ latching onto anything that gets even close to his mouth, including but not limited to his hands and feet, his toys, my fingers arms wrists, his shirt, his bath towel... you get the picture. And he chews HARD - it's a good thing this kid doesn't have teeth yet or I'm sure I'd be short a finger or two! John and I are both thoroughly chewed on and covered in baby slobber. Guess we taste like chicken :)