Pipped Egg
Pipping may refer to: * Pipping (animal behavior), the process of breaking open an eggshell using an egg tooth * Pipping (crime), any intentional unauthorized absence from compulsory schooling * Pipping (family), Finnish noble family number 207 {{disambig ...
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Pipping (animal Behavior)
An egg tooth is a temporary, sharp projection present on the bill or snout of an oviparous animal at hatching. It allows the hatchling to penetrate the eggshell from inside and break free. Birds, reptiles, and monotremes possess egg teeth as hatchlings. Similar structures exist in Eleutherodactyl frogs, and spiders. Birds When it is close to hatching, a chick uses its egg tooth to pierce the air sac between the membrane and the eggshell. This sac provides a few hours' worth of air, during which time the chick hatches. When a chick is ready to hatch from its egg, it begins the process of "pipping"; forcing the egg tooth through the shell repeatedly as the embryo rotates, eventually cutting away a section at the blunt end of the egg, leaving a hole through which the bird may emerge. Some species, including woodpeckers, have two egg teeth; one on both the upper and lower bill. After time the egg tooth falls off or is absorbed into the growing chick's bill. Some precocial species s ...
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Pipping (crime)
Truancy is any intentional, unjustified, unauthorised, or illegal absence from compulsory education. It is a deliberate absence by a student's own free will (though sometimes adults or parents will allow and/or ignore it) and usually does not refer to legitimate excused absences, such as ones related to medical conditions. Truancy is usually explicitly defined in the school's handbook of policies and procedures. Attending school but not going to class is called ''internal truancy''. Some children whose parents claim to homeschool have also been found truant in the United States. In some schools, truancy may result in not being able to graduate or to receive credit for classes attended, until the time lost to truancy is made up through a combination of detention, fines, or summer school. Truancy is a frequent subject of popular culture. '' Ferris Bueller's Day Off'' is about the title character's (played by Matthew Broderick) day of truancy in Chicago with his girlfriend and best ...
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Pipping (family)
Pipping may refer to: * Pipping (animal behavior), the process of breaking open an eggshell using an egg tooth * Pipping (crime), any intentional unauthorized absence from compulsory schooling * Pipping, a Finnish noble family See also * Pippin (other) * Pipe (other) Pipe(s), PIPE(S) or piping may refer to: Objects * Pipe (fluid conveyance), a hollow cylinder following certain dimension rules ** Piping, the use of pipes in industry * Smoking pipe ** Tobacco pipe * Half-pipe and quarter pipe, semi-circular ...