Egg tooth
May 28th, 2008 by
Egg tooth
\n egg tooth - Hutchinson encyclopedia article about egg tooth
In birds, the spike on the beak of a chick that develops just before it hatches and helps it to free itself from the shell. It is usually on the upper side of the beak, though in ... (more...)
egg tooth definition | Dictionary.com
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egg tooth definition - Dictionary - MSN Encarta
egg tooth (plural egg teeth) noun : Definition: egg-breaking projection on a hatching embryo: a small projection on the beak of a baby bird or the upper jaw of a baby reptile, used ... (more...)
egg tooth definition of egg tooth in the Free Online Encyclopedia.
egg: see ovum ovum (?`v?m), in biology, specialized plant or animal sex cell, also called the egg, or egg cell..... Click the link for more information. (more...)
egg tooth -- Britannica Online Encyclopedia
Britannica online encyclopedia article on egg tooth: tooth or toothlike structure used by the young of many egg-laying species to break the shell of the egg and so escape from it ... (more...)
Egg tooth - Wikipedia, the free encyclopedia
In some egg-laying animals, the egg tooth is a small, sharp, cranial protuberance used by offspring to break or tear through the egg's surface during hatching. (more...)
Chick Embryo Development
The egg tooth makes the initial break in the shell. This is referred to as external pipping. The hatching process can last from 4 ... (more...)
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Embryo
Development
Crocodilian Biology Database - Teeth (Egg tooth)
TYPE: Temporary modified epidermis: FUNCTION: To assist in hatching, splitting the inner membrane and cracking the outer membrane of the egg. (more...)
egg tooth: Definition from Answers.com
egg tooth n. A hard toothlike projection from the beak of embryonic birds, or from the upper jaw of embryonic reptiles, that is used to cut the egg (more...)
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