Ovoviviparity,
ovovivipary, or
ovivipary, is a mode of reproduction in
animals in which
embryos that develop inside
eggs remain in the mother's body until they are ready to hatch. This method of reproduction is similar to
viviparity but the embryos have no placental connection with the mother but receive their nourishment from a
yolk sac. In some species, this is supplemented by uterine secretions or other maternal provisioning.