Sexual Selection
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Sexual selection: ignore the blonde? - Discover Magazine (blog)

Sexual selection: ignore the blonde? - Discover Magazine (blog) | Sexual Selection | Scoop.it
Sexual selection: ignore the blonde?
Discover Magazine (blog)
Sexual selection is a big deal.
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News in Brief: Highlights from the Evolution 2013 meeting - Science News

News in Brief: Highlights from the Evolution 2013 meeting - Science News | Sexual Selection | Scoop.it
News in Brief: Highlights from the Evolution 2013 meeting
Science News
Uncovering the causal mechanism of island gigantism. Evolution 13, Snowbird, Utah, June 23, 2013. A. Carter and A. Uhl. Why do Europeans Have so many Different Eye Colors?
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Why Randomness May Not Mean What You Think It Means - io9

Why Randomness May Not Mean What You Think It Means - io9 | Sexual Selection | Scoop.it
Why Randomness May Not Mean What You Think It Means io9 Critics of Darwinian natural selection complain, for example, that there's too much apparent design in evolution for randomness to be a guiding principle, and that there needs to be a divine...
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Evolution Undergoes Change In America's Classrooms - Medical Daily

Evolution Undergoes Change In America's Classrooms - Medical Daily | Sexual Selection | Scoop.it
Evolution Undergoes Change In America's Classrooms
Medical Daily
"We discuss gene mutations and how they cause variations — natural, artificial, and sexual selection.
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Sexual Selection of Human Cooperative Behaviour: An Experimental Study in Rural Senegal

Sexual Selection of Human Cooperative Behaviour: An Experimental Study in Rural Senegal | Sexual Selection | Scoop.it

Human cooperation in large groups and between non-kin individuals remains a Darwinian puzzle. Investigations into whether and how sexual selection is involved in the evolution of cooperation represent a new and important research direction. Here, 69 groups of four men or four women recruited from a rural population in Senegal played a sequential public-good game in the presence of out-group observers, either of the same sex or of the opposite sex. At the end of the game, participants could donate part of their gain to the village school in the presence of the same observers. Both contributions to the public good and donations to the school, which reflect different components of cooperativeness, were influenced by the sex of the observers. The results suggest that in this non-Western population, sexual selection acts mainly on men’s cooperative behaviour with non-kin, whereas women’s cooperativeness is mainly influenced by nonsexual social selection.


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Why Sexy Is Sexy

Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated. Like SciShow on Facebook: http://www....
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Male crested macaques shuffle up the theory on hominid personality evolution

Male crested macaques shuffle up the theory on hominid personality evolution | Sexual Selection | Scoop.it
Male crested macaques shuffle up the theory on hominid personality evolution - Deutsches Primatenzentrum

http://t.co/AnouybkIdT
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SEX RATIO AND DENSITY AFFECT SEXUAL SELECTION IN A SEX-ROLE REVERSED FISH - Aronsen - Evolution - Wiley Online Library

SEX RATIO AND DENSITY AFFECT SEXUAL SELECTION IN A SEX-ROLE REVERSED FISH - Aronsen - Evolution - Wiley Online Library | Sexual Selection | Scoop.it
SEX RATIO AND DENSITY AFFECT SEXUAL SELECTION IN A SEX-ROLE REVERSED FISH http://t.co/MJMOGECsqj #Evolution
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Sperm Wars Ruled by Females? - Syracuse iSchool News

Sperm Wars Ruled by Females? - Syracuse iSchool News | Sexual Selection | Scoop.it
Sperm Wars Ruled by Females?
Syracuse iSchool News
Such work is de rigueur for the Pitnick Lab, known for its headline-grabbing research into evolution and sexual selection.
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Sexual selection and mating systems

Sexual selection is among the most powerful of all evolutionary forces. It occurs when individuals within one sex secure mates and produce offspring at the expense of other individuals within the same sex. Darwin was first to recognize the power of sexual selection to change male and female phenotypes, and, in noting that sexual selection is nonubiquitous, Darwin was also first to recognize the importance of mating system—the “special circumstances” in which reproduction occurs within species. Analyses of mating systems since Darwin have emphasized either the genetic relationships between male and female mating elements, usually among plants, or the numbers of mates males and females may obtain, usually among animals. Combining these schemes yields a quantitative methodology that emphasizes measurement of the sex difference in the variance in relative fitness, as well as phenotypic and genetic correlations underlying reproductive traits that may arise among breeding pairs. Such information predicts the degree and direction of sexual dimorphism within species, it allows the classification of mating systems using existing genetic and life history data, and with information on the spatial and temporal distributions of fertilizations, it may also predict floral morphology in plants. Because this empirical framework identifies selective forces and genetic architectures responsible for observed male-female differences, it compliments discoveries of nucleotide sequence variation and the expression of quantitative traits. Moreover, because this methodology emphasizes the process of evolutionary change, it is easier to test and interpret than frameworks emphasizing parental investment in offspring and its presumed evolutionary outcomes.


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Neoteny and Two-Way Sexual Selection in Human Evolution

Neoteny and Two-Way Sexual Selection in Human Evolution | Sexual Selection | Scoop.it
In that spirit I will focus on the trait of neoteny -- or the retention of childlike characteristics in mature members of a species. This process appears so amplified in humanity that we have been called the neotenous clan of apes. Humans much more closely resemble chimp or gorilla infants than adults of either species, e.g., in the smooth, vertical dome of the forehead and the relative ease of bipedality displayed by very young apes.

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Science & Life byDFCH - Just for the sex #sexual #selection #evolution...

Science & Life byDFCH - Just for the sex #sexual #selection #evolution... | Sexual Selection | Scoop.it
Just for the sex #sexual #selection #evolution #peacock (en Smithsonian Bird Exhibit) (Photo: Just for the sex #sexual #selection #evolution #peacock (en Smithsonian Bird Exhibit) http://t.co/TXUGp1B71D)...
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