Information AboutCopulation |
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copulating in the Maasai Mara , Kenya . A lion couple may copulate up to 40 times a day during their "honeymoon" period]] Copulation is the union of the external Sexual Organ s of two Sexually Reproducing Animal Organism s for Insemination and for subsequent Internal Fertilization , which is Fertilization of Ova inside organisms. The two organisms may be of opposite Sex es or Hermaphroditic , as is the case with, for example, Snail s. Animals initially lived only in water and reproduced by External Fertilization in the water. Certain animals started migrating from oceans to the land during the Late Ordovician epoch about 450 million years ago, so they started reproducing through internal fertilization. This maintained Gamete s in their originally liquid medium. One example of animals which reproduce through internal fertilization are Insect s. The female insects that copulate receive the Spermarphore s from the males' Aedeagi through their Ovipore s. Many other animals reproduce sexually with external fertilization, such as the low Vertebrate s ( Catfish and most Amphibian s). Middle vertebrates ( Fish other than catfish, Reptile s and most Bird s,) reproduce with internal fertilization through Cloaca l copulation (see also Hemipenes ), unlike higher vertebrates, which copulate Vagina lly. As for Human s and their related Hominid s, a wide variety of terms are used ( Sexual Intercourse or Coitus , for example). See '' Human Sexual Behavior '' for a discussion of the broader sense of ''sexual intercourse''. SEE ALSO EXTERNAL LINKS |
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