Reproduction
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Scientists are trying to save the northern white rhino from extinction, using artificial insemination.
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A significant breakthrough in genetics research out of Japan has raised the prospect of gender preselection, with scientists establishing a new kind of chemical treatment that can produce mice litters made up mostly of a desired sex.
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An incredible new study has for the first time found a way to transform skin cells into all three of the stem cell types that make up an early-stage embryo. This extraordinary discovery points a way toward creating an embryo without the need for an egg or sperm.
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Normally, animals reproduce by either laying eggs or giving birth to live young, but an Australian species of lizard can apparently do both in the same pregnancy. Scientists witnessed a three-toed skink lay three eggs before giving birth to a live baby, which has never been observed before.
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Human females are one of only five animals known to experience menopause and live past their reproductive prime, but why we evolved this way is still a mystery. Two new studies add weight to the hypothesis suggesting the presence of grandmothers increase survival rates for grandchildren.
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ScienceA new study has revealed a possible association between intellectual disability and some specific forms of Assisted Reproductive Technology (ART). Experts are urging caution when interpreting these results as it is unclear exactly what may be causing the increased rates of intellectual disability.
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Chinese researchers have successfully managed to breed healthy mice with genetic material from two mothers, using stem cells and gene editing.
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ScienceMost species of termites reproduce the old fashioned way. But nature, always looking for more efficient ways to do things, may be in the process of removing unnecessary steps in the process – males. Researchers have now found colonies with no male termites at all, and they seem to be thriving.
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A new study offers one of the most comprehensive examinations to date into a long-running debate, finding that men who wear boxers do indeed have better sperm counts and healthier reproductive hormone levels than their tight underwear counterparts.
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Researchers have grown human eggs from their earliest stages to maturity in a laboratory for the very first time. The achievement offers a future for women at risk of infertility, either through illness or medical treatment, to be able to store immature eggs for later fertilization.
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A new study from the German Cancer Research Center has revealed that the entire species of Marmorkrebs originate from a single mother crayfish, in a clonal reproduction that may help shed new light on processes in tumor development.
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A large-scale meta-analysis of 185 studies across 40 years has found a more than 50 percent decline in sperm concentration and total sperm count among men from North America, Europe, Australia and New Zealand. The rate of decline was found to be consistent and is cause for concern if it continues.
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