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Competition among human females likely contributed to concealed ovulation
Humans are among the few species that lack overt physical indicators of female fertility. One explanation for concealed ov...
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Researchers find 'missing link' between stress and infertility
New research has confirmed in laboratory testing that a population of nerve cells near the base of the brain - the RFRP ne...
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New drug can improve fertility in women with reproductive health problems
A drug that acts via the natural 'kisspeptin' hormone system in the body has the potential to treat reproductive health pr...
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Artificial intelligence system developed to help better select embryos for implantation
Researchers are developing an artificial intelligence system with the goal of improving IVF success by helping embryologis...
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How birth control, girls' education can slow population growth
Education and family planning have long been tied to lower fertility trends. But new research analyzes those factors to de...
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Placenta is initiated first, as cells of a fertilized egg divide and specialize
The first stages of placental development take place days before the embryo starts to form in human pregnancies. The findi...
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Why the 'wimpy' Y chromosome hasn't evolved out of existence
The Y chromosome has shrunken drastically over 200 million years of evolution. Even those who study it have used the word ...
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Opioid use linked to pregnancy loss, lower chance of conception, study suggests
Opioid use among women trying to conceive may be associated with a lower chance of pregnancy, suggests a new study. Moreov...
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Partner selection ultimately happens in the woman's reproductive tract
The female reproductive tract has the final say in human mate choice, according to new research.
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