In placental mammals, offspring are born as juveniles: complete animals with the sex organs present although non-functional. After several months or years, the sex organs develop further to maturity and the animal becomes sexually mature. Most female mammals are only fertile during certain periods and during those times, they are said to be "in heat". At this point, the animal is ready to mate. Individual male and female mammals meet and carry out copulation. For most mammals, males and ...

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Sexual reproduction, Sexual reproduction - Sexual reproduction of protists and fungi, Sexual reproduction - Reproduction in flowering plants, Sexual reproduction - Reproduction in reptiles, Sexual reproduction - Reproduction in birds, Sexual reproduction - Reproduction in mammals, Sexual reproduction - The mammalian male, Sexual reproduction - The mammalian female, Sexual reproduction - Gestation, Sexual reproduction - Birth, Sexual reproduction - Monotremes, Sexual reproduction - Marsupials, Sexual reproduction - Origin of Sexual Reproduction

Read more here: » Sexual reproduction: Encyclopedia II - Sexual reproduction - Reproduction in mammals

See also:

Female reproductive system human, Female reproductive system human - Vagina, Female reproductive system human - Cervix, Female reproductive system human - Uterus, Female reproductive system human - Oviducts, Female reproductive system human - Ovaries

Read more here: » Female reproductive system human: Encyclopedia II - Female reproductive system human - Vagina

Parthenogenesis is a particular form of asexual reproduction in which females produce eggs that develop without fertilization. Parthenogenesis is seen in aphids, rotifers, and some other invertebrates, as well as in some plants. Among vertebrates, there are several genera of fish, amphibians, and reptiles that exhibit differing form of asexual reproduction, including true parthenogenesis, gynogenesis, and hyb ...

See also:

Parthenogenesis, Parthenogenesis - Asexual versus sexual reproduction, Parthenogenesis - Parthenogenesis, Parthenogenesis - Gynogenesis, Parthenogenesis - Hybridogenesis

Read more here: » Parthenogenesis: Encyclopedia II - Parthenogenesis - Parthenogenesis