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Infanticide not only reduces intraspecific competition between the incumbent's offspring and those of other males but also increases the parental investment afforded to their own young, and allows females to become fertile faster. [12] This is because females of this species, as well as many other mammals, do not ovulate during lactation. It ...
Infanticide in non-human primates occurs as a result of exploitation when the individuals performing the infanticide directly benefit from consumption or use of their victim. [1] The individual can become a resource: food ( cannibalism ); a protective buffer against aggression, or a prop to obtain maternal experience.
Alpha female dwarf mongooses and African wild dogs kill offspring other than their own, but alpha males do not. [23] This may be because the breeding alpha may have sired a rare subordinate's offspring. Subordinate females time their pregnancies such that they give birth several days after the alpha female, to reduce the risk of infanticide.
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Social hierarchy, diet, brain size and body mass are contributing factors to how much sleep particular animals naturally need. Outside factors might even i Research Shows that Animals, too, Need a ...
A boa constrictor in the U.K. gave birth to 14 babies — without a mate. The process is called parthenogenesis, from the Greek words for “virgin” and “birth.”
Scientists hypothesize that this is because many cheetah litters have cubs from different fathers and males would not want to kill any cubs in case they killed their own. [13] The promiscuity of female cheetahs helps to protect the threatened species not only by preventing infanticide but also by bringing greater genetic diversity. [ 15 ]
In many cases of dispersal, one sex shows a greater tendency to disperse from their natal area than the opposite sex. [28] The extent of bias for a particular sex is dependent on numerous factors which include, but are not limited to: mating system, social organization, inbreeding and dispersal costs, and physiological factors.