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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 ...
Some rodent species (most typically males) will take the chance to kill neonates that are unrelated to them should opportunity permit. There is thought to be several benefits by doing so, which not only include nutrition benefits (particularly where food is in short supply [8]) but also non-direct benefits, such as allowing access to more resources, improving reproductive opportunities and the ...
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.
The long-standing lack of inclusion of women in biomedical and behavioral research has been a hindrance to sleep study. Do men really sleep better than women? Experts explain
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]
Sleep expert Dr. Wendy Troxel, RAND Corporation senior behavioral specialist and a licensed clinical psychologist in Utah, said the idea that women need significantly more sleep than men is "often ...
More men (45%) rate their overall sleep quality as good than women (36%) “My sleep quality right now is a three out of five because I have a 4-month-old baby and a 3-year-old toddler who ...
Sleep can follow a physiological or behavioral definition. In the physiological sense, sleep is a state characterized by reversible unconsciousness, special brainwave patterns, sporadic eye movement, loss of muscle tone (possibly with some exceptions; see below regarding the sleep of birds and of aquatic mammals), and a compensatory increase following deprivation of the state, this last known ...