Editing Infanticide (section)

==In animals==
{{main|Infanticide (zoology)}}
[[File:Mones.jpg|thumb|The [[Hanuman langur]]s are among the species where infanticide occurs.<ref name=Sugiyama-langurs/>]]

The practice has been observed in many other species of the [[animal]] kingdom since it was first seriously studied by [[:jp:杉山幸丸|Yukimaru Sugiyama]].<ref name=Sugiyama-langurs>{{cite journal | author = Sugiyama Y | year = 1965 | title = On the social change of Hanuman langurs (''Presbytis entellus'') in their natural conditions | journal = Primates | volume = 6 | issue = 3–4| pages = 381–417 | doi=10.1007/bf01730356| s2cid = 26758190 }}</ref> These include from microscopic [[rotifer]]s and [[insect]]s, to [[fish]], [[amphibian]]s, [[bird]]s and [[mammal]]s, including primates such as [[chacma baboon]]s.<ref name="Hoogland">{{cite journal | author = Hoogland J. L. | year = 1985 | title = Infanticide in Prairie Dogs: Lactating Females Kill Offspring of Close Kin | journal = Science | volume = 230 | issue = 4729| pages = 1037–40 | doi=10.1126/science.230.4729.1037 | pmid=17814930| bibcode = 1985Sci...230.1037H | s2cid = 23653101 }}</ref>

According to studies carried out by [[Kyoto University]] in primates, including certain types of gorillas and chimpanzees, several conditions favor the tendency to kill their offspring in some species (to be performed only by males), among them are: Nocturnal life, the absence of nest construction, the marked sexual dimorphism in which the male is much larger than the female, the mating in a specific season and the high period of lactation without resumption of the estrus state in the female.