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Definition of Term

ovoviviparity
(English) Production of eggs that are fertilised and hatch inside the mother but the embryos lack a placental connection to the oviduct or uterus and so do not feed off the mother. The embryos are primarily nourished by the yolk in their yolksac. The yolk is gradually depleted and the yolksac reabsorbed until the young are ready to be born. The young are born as miniature adults, free-swimming and feeding, e.g. Gambusia holbrooki. Also referred to as 'aplacental yolksac viviparity'. (See also: oviparity, viviparity)

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