Everything about Oviparity totally explained
Oviparous animals are animals that lay
eggs, with little or no other
embryonic development within the mother. This is the
reproductive method of most
fish,
amphibians and
reptiles, all
birds, the
monotremes, and most
insects and
arachnids.
Land-dwelling animals that lay eggs, often protected by a shell, such as reptiles and insects, do so after having completed the process of internal
fertilization. Water-dwelling animals, such as fish and amphibians, lay their eggs before fertilization, and the male lays its sperm on top of the newly laid eggs in a process called external fertilization.
Almost all non-oviparous fish, amphibians and reptiles are
ovoviviparous, for example the eggs are hatched inside the mother's body (or, in case of the
sea horse inside the father's). The true opposite of oviparity is
placental viviparity, employed by almost all mammals (except for
monotremes).
Further Information
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