Reproduction

A genetic chimerism or chimera (also spelled chimaera) is a single organism composed of cells from different zygotes.

The female reproductive system (or female genital system) is made up of the internal and external sex organs that function in human reproduction.

In biology, mating (or mateing in British English) is the pairing of opposite-sex or hermaphroditic organisms, usually for the purposes of sexual reproduction.

The ovary (From Latin: ovarium, literally "egg" or "nut") is an ovum-producing reproductive organ, often found in pairs in the female as part of the vertebrate female reproductive system.

Reproduction (or procreation, breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parents".

Sexual intercourse, or coitus or copulation, is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.

Artificial insemination (AI) is the deliberate introduction of sperm into a female's uterus or cervix for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse.

Self-replication is any behavior of a dynamical system that yields construction of an identical copy of itself.

The epididymis (/ɛpᵻˈdɪdᵻmɪs/; plural: epididymides /ɛpᵻdᵻˈdɪmədiːz/ or /ɛpᵻˈdɪdəmɪdiːz/) is a tube that connects a testicle to a vas deferens in the male reproductive system.

In vitro fertilisation (or fertilization; IVF) is a process by which an egg is fertilised by sperm outside the body: in vitro ("in glass").

Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm.

The rut is the mating season of ruminant animals such as deer, sheep, camel, goats, pronghorn and Asian and African antelope.

Prenatal or antenatal development is the process in which a human embryo and later fetus (or foetus) develops during pregnancy, from fertilization until birth.

In biology, a hermaphrodite is an organism that has reproductive organs normally associated with both male and female sexes.

In biology, a spore is a unit of asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavorable conditions.

Worker policing is a behavior seen in colonies of social hymenopterans (ants, bees, and wasps) whereby worker females eat or remove eggs that have been laid by other workers rather than those laid by a queen.

Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, conception, fecundation, syngamy and impregnation, is the fusion of gametes to initiate the development of a new individual organism.

A self-replicating machine is a type of autonomous robot that is capable of reproducing itself autonomously using raw materials found in the environment, thus exhibiting self-replication in a way analogous to that found in nature.

Apicomplexans, a group of intracellular parasites, have life cycle stages evolved to allow them to survive the wide variety of environments they are exposed to during their complex life cycle.