منابع مشابه
Paternal care may influence perceptions of paternal resemblance.
Father-child resemblance is increasingly attracting attention from researchers interested in studying paternal investment. The current study sought to determine whether a quasi-experimental infant massage intervention would increase father's perceptions of resemblance. The study included a dozen fathers in each of two groups: the first received an intensive series of lessons on infant-father ma...
متن کاملAvian paternal care had dinosaur origin.
The repeated discovery of adult dinosaurs in close association with egg clutches leads to speculation over the type and extent of care exhibited by these extinct animals for their eggs and young. To assess parental care in Cretaceous troodontid and oviraptorid dinosaurs, we examined clutch volume and the bone histology of brooding adults. In comparison to four archosaur care regressions, the re...
متن کاملWhy Do Cuckolded Males Provide Paternal Care?
In most species, males do not abandon offspring or reduce paternal care when they are cuckolded by other males. This apparent lack of adjustment of paternal investment with the likelihood of paternity presents a potential challenge to our understanding of what drives selection for paternal care. In a comparative analysis across birds, fish, mammals, and insects we identify key factors that expl...
متن کاملCanine parvovirus infection in South American canids.
Canine parvovirus (CPV) infections occurred in 5 of 35 South American canids at the Department of Conservation (DC), a breeding facility of the National Zoological Park in Front Royal, Va. The clinical signs were anorexia, lethargy, diarrhea, and vomiting. Three of the affected canids survived and had high hemagglutination-inhibition titers to CPV in the recovery period. Necropsy of the 2 that ...
متن کاملSexual Selection, Paternal Care, and Concealed Ovulation in Humans
Changes in the social structure of early humans greatly enhanced the potential for paternal care to contribute to offspring success. Selection therefore favored females who mated with more paternal males. Since paternal care limits mating effort, males least successful as polygynists would have the most to gain by paternal behavior, while the successful polygynists would gain least. Concealed o...
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ژورنال
عنوان ژورنال: American Zoologist
سال: 1985
ISSN: 0003-1569
DOI: 10.1093/icb/25.3.853