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This form of infanticide represents a struggle between the sexes, where one sex exploits the other, much to the latter's disadvantage. It is usually the male who benefits from this behavior, though in cases where males play similar roles to females in parental care the victim and perpetrator may be reversed (see Bateman's principle for discussion of this asymmetry).
Infanticide in non-human primates occurs when an individual kills its own or another individual's dependent young. Five hypotheses have been proposed to explain infanticide in non-human primates : exploitation , resource competition , parental manipulation, sexual selection , and social pathology .
They clearly weren’t mourning the albino baby’s death. Instead, their behavior seemed dominated by an attitude of curiosity. But this did not detract from their understanding of what had happened.
To investigate living environment effects, female gerbils in three housing groups (FH-family housed, PH-pair mate housed, and SH- singly housed) were observed and compared to each other. Unfamiliar pups were placed in a cage with each female to observe any infanticide response. Following the pup test samples of prolactin and progesterone were ...
Miscarriage occurs in all animals that experience pregnancy, though in such contexts it is more commonly referred to as a spontaneous abortion (the two terms are synonymous). There are a variety of known risk factors in non-human animals. For example, in sheep, miscarriage may be caused by crowding through doors or being chased by dogs. [163]
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.” ... Yes, some animals can ...
Human babies are unique in the animal kingdom due to their large head size relative to their bodies. This has an effect on the birthing process for humans as the bipedal gait of a human causes the birthing canal to be relatively narrow and twisted in the middle.
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