"Good job mum remembered to leave some air in the bottle so I can create a pressure differential…" (Image by Dirk (Beeki®) Schumacher from Pixabay)
sucking baby
infant-105063_640
Prof. Keith S. Taber's site
"Good job mum remembered to leave some air in the bottle so I can create a pressure differential…" (Image by Dirk (Beeki®) Schumacher from Pixabay)
sucking baby
