Gestation
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Gestation is the carrying of an embryo or fetus inside a female viviparous animal. Mammals during pregnancy can have one or more gestations at the same time (multiple gestations). The time interval of a gestation plus 2 weeks is called gestation period, and the length of time plus 2 weeks that the offspring have spent developing in the uterus is called gestational age. (The extra 2 weeks is because gestational age is counted starting from the last menstrual period (LMP), rather than actual conception. However this extra 2 weeks is not always added when talking about animals.)
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See also
- Evolution of mammals (for the evolution of gestation-related features in humans and other mammals)
- Male Pregnancy
- Nesting instinct
- Pregnancy
- Prenatal development
- Prenatal nutrition and birth weight
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Gestation" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
