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The bulbus glandis (also called a bulb or knot) is an erectile tissue structure on the penis of canid mammals. [1] [2] [3] ...
In evolutionary psychology and behavioral ecology, human mating strategies are a set of behaviors used by individuals to select, attract, and retain mates.Mating strategies overlap with reproductive strategies, which encompass a broader set of behaviors involving the timing of reproduction and the trade-off between quantity and quality of offspring.
Impregnation fetishism, commonly known as a breeding kink, is the experience of intense sexual attraction at the thought of being impregnated or impregnating a woman. This means a person wanting to ejaculate inside their partner or to be ejaculated into without any birth control .
[15]: 577 Herd bulls do not have time to feed during the rut due to constantly fighting other bulls as well as chasing and breeding cows. [14] Occasionally a third breeding phase will occur. This will usually take place around the end of October or early November.
In other species, males that are smaller than females have higher fitness. As such, many sex-specific morphological adaptations (for example, in Dytiscidae diving beetles, females have setose dorsal furrows that males do not and males have suction cups on their forelegs that females do not [18]) are sexual dimorphisms caused by sexual coercion.
A likely mechanism for avoidance of inbreeding is independent dispersal trajectories from the natal pack. Many of the young wolves spend time alone or in small non-breeding packs composed of unrelated individuals. The union of two unrelated individuals in a new home range is the predominant pattern of breeding pair formation. [34]
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of livestock. Selecting for breeding animals with superior EBV in growth rate, egg, meat, milk, or wool production, or with other desirable traits has ...
The husband stitch or husband's stitch, [1] also known as the daddy stitch, [2] husband's knot and vaginal tuck, [3] is a medically unnecessary and potentially harmful surgical procedure in which one or more additional sutures than necessary are used to repair a woman's perineum after it has been torn or cut during childbirth.