When we were in our mother, oxygen was supplied to us through the umbilical cord, essentially enabling us to breath under water. We no longer have an umbilical cord now, so we can't breath underwater unless we use carry our own oxygen, such as suba diver tanks.
Strait of Magellan, Spanish Estrecho de Magallanes, channel linking the Atlantic and Pacific oceans, between the mainland tip of South America and Tierra del Fuego island.
