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Reproduction involves making quality gametes – egg and sperm – which are essential for species continuity and therefore have huge implications for human health. The quality of the gametes is not only ...

In this population-level cohort study of 20 low-mortality countries, females ages 35 to 60 experienced disadvantage in cancer mortality compared with males—a consistent pattern observed across birth ...

If you liked this story, share it with other people. Successful conservation interventions have helped mountain gorilla populations recover from 620 in 1989 to more than 1,000 today. However, mountain ...

As scientists gain a better understanding of the mysteries of human physiology, the protein called myostatin (MSTN) has repeatedly been shown to play a central role in human reproduction. A new ...

An Asian water dragon hatched from an egg at the Smithsonian National Zoo, and her keepers were shocked. Why? Her mother had never been with a male water dragon. Through genetic testing, zoo ...

It’s not just about chromosomes. Or reproductive cells. Or any other binary metric. Many genetic, environmental and developmental variations can produce what are thought of as masculine and feminine ...