Hoarseness is generally caused by irritation of, or injury to, the vocal cords. The larynx (also referred to as the voice box), is the portion of the respiratory (breathing) tract containing the vocal cords. The vocal cords are two bands of muscle that form a V inside the larynx.
In some species babies are born alive. Other species lay eggs. In a strange combination of the two, some snakes have eggs that stay in their bodies until the eggs hatch and then the babies are born. Snakes can have anywhere from one to 150 baby snakes at a time.
Some snakes (mostly vipers and boas) appear to give birth to live young. What really happens is that they retain eggs inside instead of laying them, and the young emerge when â¦ they hatch. This is called oviviparity.    Only mammals nurse their young. Snakes (like birds) are nourished by the egg yolk until they are hatched, then must fend for themselves.