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Oviparous Animals

There are various types of animals that we can meet in everyday life, because some types of animals are used as pets and some are used as pets. If there are various types of animals, of course they have different ways of breeding. There are types of animals that reproduce by giving birth or Viviparous, there are also types of Ovoviviparous animals that have been discussed in other articles. Finally, there is a group of animals that reproduce by laying eggs, namely Oviparous animals, which we will discuss now.

Definition of Oviparous Animals

Oviparity itself comes from the word ovum which means egg. Oviparous animals are one way of animals to reproduce by laying eggs. After producing eggs, the eggs are incubated until they drip outside the body of the mother.

Prospective animals that are still embryos develop inside the egg and are protected by a shell. While the energy intake is obtained from food reserves in the egg cell. In general, bird species and some reptiles reproduce in an oviparous way.

Oviparous Characteristics

Some of the characteristics possessed by animals that reproduce by laying eggs, namely:

  • The eggs are incubated until they drip.
  • The eggs hatch outside the mother’s body.
  • Oviparous usually from the group of birds, and not from the group of mammals.
  • Has no earlobe.
  • They don’t have mammary glands, so they can’t breastfeed their babies.

The characteristics above are generally owned by groups of animals that reproduce oviparously.

Examples of Oviparous Animals

Below are 20+ examples of oviparous animals grouped by species of each animal.

Bird Species Oviparous Animals

Birds that fall into the oviparous group, namely:

1. Goose

Goose is a type of animal that reproduces in an oviparous way, and includes plant-eating animals ( herbivores ), namely grass.

Reproduction of geese:

  • It begins with the fertilization of a female goose by a male goose.
  • Produces eggs, usually 2 to 10 eggs in a season.
  • Eggs will be released in about 12-24 hours.
  • The eggs are incubated by the mother.
  • The incubation period is 34-54 days.

Goose mating and breeding starts from the age of 3 years, and goose marriage is monogamous (the condition must have only one pair), and lasts forever or for the whole life of the goose.

2. Chicken 

Chicken breeding is done by laying eggs or oviparity. Here is the breeding cycle of the chicken:

  • Adult chickens carry out fertilization (eggs with sperm),
  • Form a zygote.
  • Develops into eggs.
  • Incubated for 21 days
  • Hatching chicks

Chicks will grow and develop into adults, and will carry out the breeding cycle as above.

3. Duck 

Ducks also have another name alias duck. Ducks are a group of birds, and reproduce by means of ovipara or laying eggs. Ducks that lay eggs usually begin to reproduce their eggs at the age of 6 months to 7 months.

The characteristics of a duck that will lay eggs, namely: the fine hair will fall out, often make noise or sound for no reason, and lose appetite but can still be healthy.

4. stuck 

Mentok reproduce by laying eggs, and can produce up to 16 eggs. The eggs are incubated for 5 weeks, and the female parent rarely leaves the nest while it is still in the process of incubating the eggs.

5. Turkey 

Turkeys reproduce by laying eggs, and are able to reproduce through parthenogenesis (asexual reproduction) without fertilization or fertilization from a male parent.

6. Birds 

Bird species reproduce by laying eggs, then the eggs are incubated for up to 21 days, after which the eggs hatch.

Fish Species Oviparous Animals

The following groups of fish reproduce oviparously:

7. Mujair Fish

Tilapia fish begin to breed at the age of about 3 months, and the breeding cycle can occur every 1 months. Once fertilization will produce dozens of eggs, and then incubated (a week) in the mouth of the female parent until they hatch.

8. Gourami

Carp lay eggs in a nest. The adaptation process for carp spawners takes a long time, about a few days after spawning is done. The nature of the eggs of carp does not sink, and is not adhesive (sticky). In the egg phase to the larvae, organs begin to form.

Amphibian Species Oviparous Animals

Amphibians can live in two realms, land and sea. Frogs are one type of amphibian that reproduces oviparously.

9. Frog

The process of frog breeding, namely:

  • Frogs use external fertilization by releasing a collection of eggs in the water.
  • Then the male frog will release his sperm to be fertilized.
  • Eggs develop in water until they hatch
  • Come out the tadpole or form before the frog. Tadpoles have a body shape like a fish (does not have fish, but can live by swimming).
  • Tadpoles grow into adults.
  • Growing leg organs and lungs – lungs.
  • adult frog

The tadpole initially breathes through gills, and when it turns into an adult frog, the lungs grow, and the gills disappear. Frogs do not have a diaphragm and ribs, so air enters through the nose as the frog’s throat expands.

Insect Species Oviparous Animals

Insect groups are very diverse, and some examples of animals below reproduce by laying eggs.

10. Cricket

Female crickets release their eggs through the reproductive organ, namely the ovipositor (shaped like a needle). The process of reproduction of crickets when ready to mate, namely:

  • Copulation (the position of the female parent on the body of the male parent).
  • Sperm enters the abdomen to meet the egg.
  • Lay eggs 7 days to 10 days after mating.
  • The female parent lays eggs in a damp place
  • For 10 days to 13 days dripping cricket eggs

11. Butterflies

One of the animals that has a beautiful body shape and face mating in order to produce eggs. Butterflies are a complete metamorphosis process.

  • The mother butterfly lays her eggs on the leaves, and it takes 3-5 days for them to hatch.
  • Larvae or caterpillars come out of the egg shells, and look for food. The process of changing the skin occurs about 5-6 times.
  • Fasting pupae time varies depending on the species, about 7-20 days.
  • Butterfly.

After emerging from the cocoon shell, the butterfly’s wings will function normally, and seek nutrition by sucking flower nectar.

12. Mosquito

Phases of mosquitoes that reproduce by laying eggs, namely:

  • Mosquitoes lay over 300 eggs, and it takes 48 hours to hatch.
  • Mosquito larvae. Make changes for 4 times, and every time it molts its body size gets bigger and then turns into a pupa.
  • Stage of rest because it does not need food.
  • Adult mosquito.

Some of the examples above, there are more oviparous animals from insect species, namely: Cockroaches, Ants, Dragonflies, Grasshoppers, Beetles, Wasps, and Bees. In addition to insects, and bird species, as well as fish, reptiles also have oviparous breeding methods, namely: lizards, geckos, crocodiles, and also monitor lizards.

An explanation of how animals reproduce will not be complete if you only study oviparous animals. So also learn about Ovoviviparous animals , and Viviparous animals , so that we can know the differences in how different types of animals reproduce.