Infanticide in Primates: Difference between revisions
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THIS IS A PAGE BY MEHERET OURGESSA <br> <br> | THIS IS A PAGE BY MEHERET OURGESSA <br> <br> | ||
<b> Infanticide </b> generally refers to the killing of an infant or a young offspring by an adult or mature individual of the same species and is observed in a variety of species ranging from humans to microscopic rotifers and especially in primates. Both males and females can be the perpetrators of infanticide in animals and both parents (filial infanticide) | <b> Infanticide (in animals) </b> generally refers to the killing of an infant or a young offspring by an adult or mature individual of the same species and is observed in a variety of species ranging from humans to microscopic rotifers and especially in primates. Both males and females can be the perpetrators of infanticide in animals and both parents (filial infanticide) and non-parent individuals have been observed to display the behavior. Filial infanticide, which can be accompanied by cannibalism (filial cannibalism), is widespread in fishes and is also seen in terrestrial animals. It has been estimated that infanticide occurs in 25% of all mammals and, in some of these populations, infanticide is a major contributor to infant mortality.<ref> <br><br> | ||
Male infanticide occurs most frequently in social species, less frequently in solitary species and least frequently in monogamous species.<ref>[https://science-sciencemag-org.libproxy.kenyon.edu/content/346/6211/841, Lukas, D. and Huchard E. "The evolution of infanticide by males in mammalian societies." 2014. Science 346:6211.]</ref> Although previously considered pathological and maladaptive and attributed to environmental conditions such as overcrowding and captivity (2), there are currently several explanations for the evolution of infanticide in non-human primate communities such as resource competition, sexual competition, and exploitation. Many primates such as the gorilla, chimpanzee, baboon, and langur have been known to practice infanticide while others, such as the orangutan, bonobo and mouse lemur don’t (Reuters). | Male infanticide occurs most frequently in social species, less frequently in solitary species and least frequently in monogamous species.<ref>[https://science-sciencemag-org.libproxy.kenyon.edu/content/346/6211/841, Lukas, D. and Huchard E. "The evolution of infanticide by males in mammalian societies." 2014. Science 346:6211.]</ref> Although previously considered pathological and maladaptive and attributed to environmental conditions such as overcrowding and captivity (2), there are currently several explanations for the evolution of infanticide in non-human primate communities such as resource competition, sexual competition, and exploitation. Many primates such as the gorilla, chimpanzee, baboon, and langur have been known to practice infanticide while others, such as the orangutan, bonobo and mouse lemur don’t (Reuters). | ||
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Revision as of 21:19, 4 December 2019
Introduction
THIS IS A PAGE BY MEHERET OURGESSA
Infanticide (in animals) generally refers to the killing of an infant or a young offspring by an adult or mature individual of the same species and is observed in a variety of species ranging from humans to microscopic rotifers and especially in primates. Both males and females can be the perpetrators of infanticide in animals and both parents (filial infanticide) and non-parent individuals have been observed to display the behavior. Filial infanticide, which can be accompanied by cannibalism (filial cannibalism), is widespread in fishes and is also seen in terrestrial animals. It has been estimated that infanticide occurs in 25% of all mammals and, in some of these populations, infanticide is a major contributor to infant mortality.Cite error: Closing </ref> missing for <ref> tag Although previously considered pathological and maladaptive and attributed to environmental conditions such as overcrowding and captivity (2), there are currently several explanations for the evolution of infanticide in non-human primate communities such as resource competition, sexual competition, and exploitation. Many primates such as the gorilla, chimpanzee, baboon, and langur have been known to practice infanticide while others, such as the orangutan, bonobo and mouse lemur don’t (Reuters).
https://www.upi.com/Science_News/2014/11/13/Big-testes-are-sign-that-a-species-has-history-of-infanticide/8601415916184/.
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Edited by MEHERET OURGESSA, student of Joan Slonczewski for BIOL 116 Information in Living Systems, 2019, Kenyon College.
