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In times of prey scarcity, low-ranking wolves may choose to go off on their own if the pack cannot supply sufficient food. These lone wolves may then attempt to join an existing wolf pack or, more commonly, find a mate and begin a new pack family as the alphas. [16] [obsolete source]
Choosing a mate for attractiveness could thus help to find a healthy mate resistant to parasites. [79] [80] Scarification could be viewed by prospective mates as evidence that a person has overcome parasites and is thus more attractive. [81] [82] Masculinity, especially in the face, could equally indicate robust parasite-free health.
Elephants can use their ears as threat displays in male-to-male competition. Sexual selection in mammals is a process the study of which started with Charles Darwin's observations concerning sexual selection, including sexual selection in humans, and in other mammals, [1] consisting of male–male competition and mate choice that mold the development of future phenotypes in a population for a ...
Sexual selection creates colourful differences between sexes in Goldie's bird-of-paradise.Male above; female below. Painting by John Gerrard Keulemans.. Sexual selection is a mechanism of evolution in which members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex ...
Social hierarchies typically develop because of competition for limited resources including food, territories, or mates. During the breeding season, males cluster around certain territory, forming a dense aggregation in shallow water. [37] This aggregation forms the basis of the lek through which the females preferentially choose their mates ...
In the case of Mexican wolves, those unrelated mates are increasingly hard to come by because of the level of inbreeding in the population and the narrow band of Arizona and New Mexico where ...
How Many Types of Wolves Are There, Really? The article (about types of wolves) states there are two types of wolves in the world.This ignores the African/golden wolf (Canis anthus) of west, north ...
Since the mating demands of males are greater than those offered by females, the females use social grooming to choose mates and males use it to incite mating. Finally, kin selection is not as important a factor as friendship or mate preference when choosing a grooming mate as previously thought. [ 16 ]