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Can a Chemotherapy Drug 'Turn Back the Clock' in Women's Ovaries?Women undergoing a particular chemotherapy had a much greater number of eggs in their ovaries than expected, a finding that surprised researchers.
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Good Cognition in Older Women Linked to Pregnancy HistoryHaving your last baby in your late 30s may be good for your brain.
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Healthy Baby Mice Produced from Mouse Mom's Skin CellsSkin cells from mouse moms were matured in a lab dish and developed into baby mice. The feat is a step toward a similar process that one day may work in humans.
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Male Widow Spiders Survive Sex by Mounting Immature VirginsIn two widow spider species, males deploy an ingenious strategy to avoid being cannibalized during sex.
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'Wild Sex' Author Dishes on Weird World of Animal MatingBiologist and writer Carin Bondar leads the way into the intriguing world of animal sexual practices in her new book, "Wild Sex."
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Viper vs. Viper! Never-Before-Seen Combat RecordedCombat between two different viper species has never been observed — until now.
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Live Mice Are Bred from Artificially Developed EggThe experiment resulted in the birth of healthy baby mice with a success rate of up to 24 percent.
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5 Surprising Facts About Egg FreezingA city in Japan says it will pay for egg freezing as a way to improve the country's low birth rate. But the procedure is not a perfect solution.
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Why Some Flies Have Mega SpermSome teensy fruit flies produce sperm more than 2 inches (5 centimeters) long.
