Egg tooth (nonfiction): Difference between revisions
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(Created page with "In some egg-laying animals, the '''egg tooth''' is a small, sharp, cranial protuberance used by offspring to break or tear through the egg (nonfiction)'s surface during ha...") |
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== External links == | == External links == | ||
* [http://wiki.karljones.com/index.php?title=Egg_tooth Egg tooth] @ wiki.karljones.com | |||
* [https://en.wikipedia.org/wiki/Egg_tooth Egg tooth] @ Wikipedia | * [https://en.wikipedia.org/wiki/Egg_tooth Egg tooth] @ Wikipedia | ||
[[Category:Nonfiction (nonfiction)]] | [[Category:Nonfiction (nonfiction)]] | ||
Revision as of 07:26, 21 March 2016
In some egg-laying animals, the egg tooth is a small, sharp, cranial protuberance used by offspring to break or tear through the egg (nonfiction)'s surface during hatching.
It is present in most birds and reptiles, and similar structures exist in monotremes, Eleutherodactyl frogs, and spiders.
Some lizards and snakes develop a true tooth that is shed after use; other reptiles and birds generally develop an analogous epidermal horn that is reabsorbed or falls off.