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.
Report Abuse. There is no single species which does both, but there are types of animals in which some species lay eggs and some give birth. Snakes are a good example. Some snakes, for example pythons and cobras, lay eggs, whilst others, such as boas and rattlesnakes, give birth to live young.