Major Histocompatibility Complex and Sexual Selection — A pathogen is any agent that causes disease. The body has two defense mechanisms for dealing with pathogenic microorganisms and other harmful substances: the inflammatory reaction and the development of an acquired immunity. Acquired immunity… … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
Polyamory — Polyamorous redirects here. For the Breaking Benjamin song, see Polyamorous (song). The infinity heart is a widely used symbol of polyamory.[1] … Wikipedia
Spawn (biology) — The spawn (eggs) of a clownfish. The black spots are the eyes developing. Spawn refers to the eggs and sperm released or deposited, usually into water, by aquatic animals. As a verb, spawn refers to the process of releasing the eggs and sperm,… … Wikipedia
Social behaviour in animals — Introduction actions of animals living in communities. Such behaviour may include the feeding of the young, the building of shelters, or the guarding of territory. General characteristics Social behaviour (Social behaviour in animals) … Universalium
Monogamy — For the film, see Monogamy (film). Relationships … Wikipedia
Open relationship — The Purple Mobius symbol for polyamory and non monogamy. An open relationship is an interpersonal relationship in which the parties want to be together but agree to a form of a non monogamous relationship.[1] This means that they agree that a… … Wikipedia
Animal sexual behaviour — This article is about the sexual behaviour of non human animals; see also Human sexuality and Sexual reproduction. Animal sexual behaviour takes many different forms, even within the same species. Among animals other than humans, researchers have … Wikipedia
Polygamy — Toba chieftain and his wives, 1892 Polygamy (from πολύς γάμος polys gamos, translated literally in Late Greek as often married )[1] is a marriage which includes more than two partners.[1] … Wikipedia
Polyamory — Das Herz mit dem Zeichen der Unendlichkeit als Symbol für Polyamory Polyamory (englisches Kunstwort aus griechisch πολύς polýs „viel, mehrere“ und lateinisch amor „Liebe“, oft auch eingedeutscht Polyamorie geschrieben) ist ein Oberbegriff für die … Deutsch Wikipedia
Ecology — For other uses, see Ecology (disambiguation). Ecology … Wikipedia