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Results for “viviparity”

Ichthyological terms, not general ones.

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  • viviparity

    The state or quality of being viviparous.

    Used in 13 profiles

  • aplacental viviparity

    Also known as ovoviviparity. Method of reproduction employed by certain fishes in which the eggs are fertilised and develop inside the female but there is no placental connection. The juveniles are free-swimming and able to feed as soon as they leave the female's body.

  • yolk sac viviparity

    Form of livebearing in which the larvae are mostly nourished by a yolk sac which is fully-absorbed prior to birth.

  • ovoviviparity

    Reproductive strategy in which fertilisation occurs internally and the eggs develop inside the body of the mother until hatched, at which point live offspring are born. There is no placental connection between mother and embryo unlike in viviparous species.

  • viviparous

    Giving birth to living offspring that develop within the mother's body, e.g., most mammals, many reptiles, some fishes. There is a direct placental or equivalent connection to the mother, meaning that members of the family Poeciliidae are not strictly viviparous and more correctly referred to as ovoviviparous.

    Used in 3 profiles

  • gestation

    Period of embryonic development in a viviparous organism.

    Used in 31 profiles

  • livebearer

    A fish species exhibiting ovoviviparity or viviparity.

    Used in 234 profiles

  • matrotrophy

    Reproductive strategy in which the embryo is supplied with additional nutrition from the mother, applied to some viviparous fishes.

    Used in 1 profile