Ovoviviparous animals develop within eggs that remain within the mother's body up until they hatch or are about to hatch. In most Birds and Reptiles an egg ( Latin ovum) is the Zygote, resulting from Fertilization of the Ovum. This strategy of birth is known as ovoviviparity. Childbirth (also called labour, birth, partus or parturition) is the culmination of a Human Pregnancy or It is similar to vivipary in that the embryo develops within the mother's body. A viviparous Animal is an animal employing vivipary: the embryo develops inside the body of the mother as opposed to outside in an egg ( Ovipary Unlike the embryos of viviparous species, ovoviviparous embryos are nourished by the egg yolk rather than by the mother's body. An embryo (from Greek:, plural, lit "that which grows" from en- "in" + bryein "to swell be full" is a multicellular An egg yolk is the part of an egg which serves as the Food source for the developing Embryo inside However, the mother's body does provide gas exchange. Gas exchange or respiration takes place at a respiratory surface—a boundary between the external environment and the interior of the body
Ovoviviparity is employed by many aquatic life forms such as fish and some sharks, reptiles, and invertebrates. Fish are aquatic Vertebrate animals that are typically ectothermic (previously Cold-blooded) covered with scales, and equipped with two Sharks ( Superorder Selachimorpha) are a type of Fish with a full cartilaginous Skeleton and a highly streamlined body Reptiles, or members of the class Reptilia are air-breathing Cold-blooded Vertebrates that have skin covered in scales as opposed to hair or feathers An invertebrate is an Animal lacking a Vertebral column. The group includes 98% of all animal Species — all animals except those in the Chordate The young of ovoviviparous amphibians are sometimes born as larvae, and undergo metamorphosis outside the body of the mother. Prehistoric amphibian Amphibians (class Amphibia such as Frogs Toads Salamanders Newts Gymnophiona, Sirens and A larva ( Latin; plural larvae) is a juvenile form of Animal with indirect development, undergoing Metamorphosis (for example Metamorphosis is a Biological process by which an Animal physically develops after Birth or hatching involving a conspicuous and relatively
See also
Oviparous animals are animals that lay eggs, with little or no other Embryonic development within the mother A viviparous Animal is an animal employing vivipary: the embryo develops inside the body of the mother as opposed to outside in an egg ( Ovipary Live-bearing aquarium fish, often simply called livebearers, are Fish that retain the eggs inside the body and give birth to live free-swimming young The grey nurse shark (Australia spotted ragged-tooth shark (Africa or sand tiger shark (US and UK Carcharias taurus, is a large Shark Giffordius is a Gastropod genus consisting of terrestrial snails in the family Polygyridae.Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic