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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Vivipary
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INFOTEXT
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1992-09-01
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692b
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18 lines
In animals, a method of reproduction in which
the embryo develops inside the body of the
female from which it gains nourishment (in
contrast to ovipary and ovovivipary).
Vivipary is best developed in placental
mammals, but also occurs in some arthropods,
fishes, amphibians, and reptiles that have
placentalike structures. In plants, it is the
formation of young plantlets or bulbils
instead of flowers. The term also describes
seeds that germinate prematurely, before
falling from the parent plant. Premature
germination is common in mangrove trees,
where the seedlings develop sizable spearlike
roots before dropping into the swamp below;
this prevents their being washed away by the
tide.