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At the tip of a chicks beak is a small sharp bump called the egg tooth. The chick uses this "tooth" to put pressure in the shell from the inside making a small hole for air and then a series of cracks. This process can take 24 hours or more. The chick comes out of the shell with this egg tooth intact but it soon is absorbed as the beak grows and the chick get older.

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13y ago

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After 18 days of the hatchery process the egg shell gets worn off and starts getting cracked from inside. When the chick is fully developed it breaks the inner membrane and forces pressure against the calcium shell, it breaks and out comes the chick.

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14y ago
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Q: What helps chicks get out of shells?
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