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Some females abort or resorb their own young while they are still in development after a new male takes over; this is known as the Bruce effect. [31] This may prevent their young from being killed after birth, saving the mother wasted time and energy. However, this strategy also benefits the new male.
In many instances of nonparental infanticide in carnivores, the male of a species kills the young of a female to make her sexually receptive, e.g. brown bears. When one or two new male lions defeat and exile the previous males of a pride, the conqueror(s) will often kill any existing young cubs fathered by the losers. [3]
A white-fronted capuchin sits in a tree. Cases of infanticide in white fronted capuchins have been attributed to resource competition. 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]
In a study on reproduction, researchers found that females were more likely to abort their young if they were first-time pregnancies and triplets (as opposed to smaller litters). Mortality rates of young were highest in spring and lowest in winter. Kid mortality rates increased with a higher proportion of ibex genes. [65]
In the presence of a dominant pregnant female, subordinate pregnant female hamsters have the ability to reabsorb or spontaneously abort their young (most often males) in utero. [7] The subordinate females produce smaller litters overall, and any male offspring they do produce will be smaller in size than those that were produced by the dominant ...
Some animals starve to death shortly after birthing their young while others are eaten by their own young -- but these mothers make the ultimate sacrifice. Click through for 10 animal mothers that ...
Liberal women are withholding sex from men and shaving their heads to protest President-elect Donald Trump’s landslide victory over Kamala Harris. ... citing dwindling abortion access across the ...
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