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A mammal in which males remain as care helpers. [10] Male mammals employ different behaviors to enhance their reproductive success (e.g. courtship displays, mate choice). However, the benefits of paternal care have rarely been studied in mammals, largely because only 5-10% of mammals exhibit such care (mostly present in primates, rodents and ...
In birds, this parental care system is generally attributed to the ability of male birds to engage in most parental behaviours, with the exception of egg-laying. Due to their endothermy and small size at birth, there is a huge pressure for infant birds to grow up quickly to prevent energy loss.
The variation in male paternal care may be due to the differences in the importance of male care to infant survival, the differences in male confidence of paternity, which may relate to seasonal breeding patterns and the presence or absence of conspicuous signs of female ovulation, and the relative costs and benefits of other opportunities ...
In the Assembly, Paradis explained that the bill would bring Quebec's laws into line with British Columbia, Manitoba and Ontario, which have some of the strongest animal protection laws in Canada. He also emphasized the need for anyone who is responsible for animals, whether domesticated or farm animals, to take proper care of them.
Opie, Atkinson, Dunbar, & Shutlz (2013) found strong evidence that male infanticide preceded the evolutionary switch to social monogamy in primates rather than bi-parental care or female distribution, suggesting that infanticide is the main cause for the evolution of social monogamy in primates.
Sexual selection is an evolutionary concept that has been used to explain why, in some species, male and female individuals behave differently in selecting mates. In 1930, Ronald Fisher wrote The Genetical Theory of Natural Selection, [3] in which he introduced the modern concept of parental investment, introduced the sexy son hypothesis, and introduced Fisher's principle.
This indicates that the cost of parental care in the pointedbelly frog has the potential to affect future reproduction of females due to the reaction in body condition and food intake. [ 13 ] In the Puerto Rican common coqui , parental care is performed exclusively by males and consists of attending to the eggs and tadpoles at an oviposition site.
Unless the male and female are perfectly monogamous, meaning that they mate for life and take no other partners, even after the original mate's death, the amount of parental care will vary. [7] Instead, it is much more common for polygynous mating to happen. Polygynous structures (excluding leks) are estimated to occur in up to 90% of mammals. [2]