That is interesting stuff. :yes:
Babies can hold breath in water for short period.That up to 6 six month.That is why Doman suggest to start to teach Ur baby swimming from 2 months. 
babies cry as a form of basic instinctive communication. A crying baby may be trying to express a variety of feelings including hunger, discomfort, overstimulation, boredom, wanting something, or loneliness…
Baby’s bones have red bone marrow in them verses adults who have mostly all yellow. The red is what makes the bloods cells and as adults it is only in the round part of the hip bones and the sternum.
I love this thread keep em coming ;D