Using life-sized digital humans, researchers reveal how genital size subtly shapes attraction and rivalry, offering new insight into why human male anatomy is so evolutionarily distinctive. Image ...
Share on Pinterest Researchers have found microplastics in every sample of human and dog testicles they tested in a new study. Image credit: Jovana Milanko/Stocksy. Multiple factors contribute to ...
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Estrogen in both the male and female brain shapes responses to trauma, study suggests
Traumatic experiences can cause memory problems, and estrogen may be a key factor that shapes the brain's resilience against ...
A massive study of ancient and modern DNA from thousands of West Eurasian people has identified nearly 500 genetic variants ...
“Size matters” sounds like a tabloid cliché, but for evolutionary biologists the size of the human penis is truly a puzzle. Compared to other great apes, such as chimpanzees and gorillas, the human ...
Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm counts and quality since the 1940s. A more recent study found that male ...
Brain scientists have long debated when, and how strongly, sex starts to shape the human brain. A growing body of imaging work now points to a clear answer: measurable differences in brain size and ...
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