Health
How often do people have sex?
Australians report having sex once or twice a week, on average. For Brits, it's less than once a week, while Americans report having sex two to three times a week.
Feb 25, 2019
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News tagged with reproductive success
Genetics
Why we did not evolve to live forever: Unveiling the mystery of why we age
Researchers at the Institute of Molecular Biology (IMB) in Mainz, Germany, have made a breakthrough in understanding the origin of the ageing process. They have identified that genes belonging to a process called autophagy ...
Sep 15, 2017
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7032
Psychology & Psychiatry
Why do men find a lower waist-to-hip ratio sexier?
Male turkeys famously will attempt to mate with a head on a stick. In fact, gobblers prize a snug snood over the whole hen. How far then can a man's ideal sexual partner be stripped?
Sep 2, 2019
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Psychology & Psychiatry
Are women more attracted to 'dark and brooding' men?
A paper co-authored by a researcher from the University's Institute of Psychology, Health and Society states that women are generally drawn to men with dark and brooding looks. This in turn may relate to their reproductive ...
Feb 25, 2016
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Psychology & Psychiatry
A woman's face drives relationship length: study
Men looking for a quick fling prefer women with more "feminine" facial features, said a study Friday that delved into the evolutionary determinants of the mating game.
Jun 21, 2013
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Health
Study suggests father's environmental exposure affects sperm epigenetics
Early results from a larger, ongoing study led by environmental health scientist Richard Pilsner at the University of Massachusetts Amherst suggest that phthalate levels in expectant fathers have an effect on couples' reproductive ...
Sep 12, 2017
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Neuroscience
Research finds male and female capuchin monkeys show visible differences in brain structures
Male and female capuchin monkeys don't just behave differently—their brains look different too. According to a new study published by a team of researchers from Georgia State University, Harvard University, and Trinity ...
Jul 3, 2020
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Psychology & Psychiatry
'Believing you're a winner' gives men a testosterone boost and promiscuous disposition
A new study shows that men only have to believe they've bested another man in competition to get raised testosterone levels and an inflated sense of their own value as a sexual prospect.
Aug 8, 2018
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Genetics
Got eczema? It may just be bad evolutionary luck, study finds
Some genetic diseases persist for generation after generation because the genes that cause them can benefit human health.
Oct 5, 2016
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Medical research
New measure of sperm age may be predictor of pregnancy success
A novel technique to measure the age of male sperm has the potential to predict the success and time it takes to become pregnant, according to a newly published study by researchers at the Wayne State University School of ...
May 13, 2022
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Reproductive success
Reproductive success is defined as the passing of genes onto the next generation in a way that they too can pass those genes on. In practice, this is often a tally of the number of offspring produced by an individual. A more correct definition, which incorporates inclusive fitness, is the relative production of fertile offspring by a genotype. For example, the offspring produced as a result of normal mating are an example of reproductive success, because they too can pass their genetic material on to the next generation. Alternatively, the birth of a mule as a result of the mating of a horse and a donkey is not an example of reproductive success because the mule is sterile and thus not able to continue the germ line.
Reproductive success is part of the calculation for fitness and a key element in the theories of natural selection and evolution.
This text uses material from Wikipedia, licensed under CC BY-SA
