Questions tagged [sexual-selection]
The concepts of mate choice and competition over eligible members of the opposite sex in animals, including humans.
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How does the Fisherian model of runaway selection explain evolution?
I know that this model describes a genetic correlation between attractive traits found in males and the corresponding female preference for that trait. Basically, daughters are likely to inherit a ...
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Is mating preference a genetic trait?
This question may be basic, but I have tried to look it up and haven't been able to find a solid answer. When researching why species diverge through sexual selection, I heard from multiple sources ...
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Impact of sexual selection on the divergence of species
I understand that natural selection can cause a species to diverge because selective pressures influence species based on where they live. However, I am unclear how sexual selection plays a role in ...
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Is there a way to measure the handicap principle?
The handicap principle is used as an explanation for some genetic traits, such as bright tails in male peacocks. However, it seems that this principle could be used to justify sexual selection of ...
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Why is "mutual search" of some disadvantage/loss of power? (in Darwin's The Descent of Man)
I read a book "The Descent of Man" from Charles Darwin. What is the reason for the following statement?
"It would be no advantage and some loss of power if both sexes were mutually to ...
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What determines whether a trait brought out through sexual selection is transmitted only to offspring of the same sex or of both sexes?
First of all, let me apologize for my amateurishness. I have no background in biology. Please bear with me.
My question relates to sexual selection, or specifically its most prominent manifestations:
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Does lack of adaptations for sperm competition necessarily shows the species are monogamous/serially monogamous/polygynous?
On the one hand adaptations for sperm competition, such as large testes, mate guarding, etc. are used to support that female in species are promiscuous.
On the other hand we know multiple eusocial ...
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How is sexual selection evolutionarily stable?
It seems like in any population subject to evolutionary pressure, sexual attractiveness will inversely correlate with other kinds of reproductive fitness. If you see a peacock with a small tail ...
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Why do the two sexes have different reproductive costs and capabilities?
Is there an evolutionary explanation that shows why the reproductive costs are mostly on the female sex?
And therefore, why do males can potentially have more offspring?
Does that happen to create ...
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Large study showing that attraction to only the same sex has to do with your genes, published where?
Can someone please help me out and find and link me the study from a couple of years ago that showed how only same sex attraction, when the male cant become attracted to a woman, it has to do with ...
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How does natural selection explain sexual display?
As I understand it, animals sometimes grow more vibrant colors, bigger feathers, elaborate dances, build shiny nests, all to impress the other sex. However, these are all superfluous to survival -- ...
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Are there examples of animals being sexually attracted to another species more than to their own?
I just thought that from the perspective of a female domestic cat, a male bobcat probably looks like the archetype of a perfect mate. As tall, strong, muscular and mighty as it possibly gets. Clearly ...
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Why are (some) male humans sexually attracted to the breasts of female humans? [closed]
Many male humans are sexually attracted to the breasts of female humans. Is there an evolutionary reason for this?
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Isn't sexy son hypothesis circular?
Sexy son hypothesis.
It states that females are attracted to certain traits in males, because these traits will be attractive in her sons either. But isn't this circular?
Like "I'm attracted to that ...
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Is the deep ocean fish look ugly because due to darkness there is no visual sexual selection? [closed]
Is the deep ocean fish look ugly because due to darkness there is no visual sexual selection? If so, is there a common notion of beauty between humans and animals?
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