Oviparous animals are animals that lay eggs This is in contrast to viviparous animals which give birth to live young Most fish amphibians and reptiles are oviparous
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In oviparous animals the fertilized eggs are laid outside the body In most reptiles birds and fish the eggs are left in a nest or are attached to the female’s body Insects often lay their eggs in masses on plants or on the ground
In oviparous animals the eggs are fertilized outside the body The eggs are usually laid in water but some insects lay their eggs on land After the eggs are fertilized the embryo develops inside the egg When the embryo is ready to hatch it breaks out of the eggshell
In oviparous animals the fertilized eggs are typically deposited outside the body often in an aquatic environment Fish amphibians reptiles and invertebrates are all oviparous as are some birds and mammals In contrast mammals that give birth to live young are called viviparous
In oviparous animals the zygote is fertilized outside of the female’s body For example in birds the zygote is usually fertilized by the male in the air sacs within the reproductive tract After fertilization the zygote divides to form a blastodisc which will become the embryo The yolk of the egg provides nutrients for the growing embryo
In oviparous animals the fertilized eggs are retained within the female’s body In some species the eggs hatch inside the mother’s body and the newborn young are then expelled In other species the eggs are laid outside the mother’s body and the newborn young crawl to their final destination
The process of reproduction in oviparous animals is quite fascinating In most cases the male deposits sperm into the female’s body and the fertilized eggs are then released from the female’s body and hatch outside of her This is why many people refer to these animals as “external fertilization” species
In oviparous animals the development of the embryo is typically delayed until after egg laying This ensures that the developing embryo has a food supply and is not subjected to the hazards of predation or parasitism In addition the eggs of oviparous animals are often equipped with an adhesive that helps them attach to a substrate such as a rock or tree which helps protect them from being carried away by currents or eaten by predators
In oviparous animals the fertilization and early development of the embryo take place outside the body of the mother The eggs are laid in or on a suitable substrate such as water land or an air-breathing host After the egg is fertilized it begins to develop
In oviparous animals the egg cells are not enclosed in a womb but are laid in an external environment The eggs may be stored in an ovary or they may be released into the environment
