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.
Unlike many reptiles, sea snakes give birth to live young in the sea, according to Animal Corner; the female carries the eggs inside her body until they hatch. The snakes surface to breathe air, but they can wait as long as a third of a day before doing so; they can use their skin to breathe, and they have a single large lung.