Chile's black widow spider may yield spermicide
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Scientists have discovered a potentially marketable contraceptive in the venom of Chile's black widow spider, whose bite is fatal to many but can also cause prolonged, painful and involuntary erections in men.
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Japanese scientists helped infertile salmon sire baby trout by lending them trout sperm, a technique that could save endangered species, according to research published in the United States Thursday.
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Scientists hope to test a contraceptive dart next year as a new weapon to curb a koala population explosion that has destroyed thousands of trees on an Australian island, a researcher said Sunday.
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The world of male contraception has been limited to condoms and vasectomies. But researchers now point to a new method that shows promise &#151; a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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Scientists could be on the trail of a reversible male contraceptive that works through the immune system. They report that they injected nine male macaque monkeys with Eppin, a protein from the testes.
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Scientists identify a protein that helps detect DNA damage in eggs which could help treat female infertility.
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By LOVELL-SMITH Mary  The Bugman, Ruud Kleinpaste, can put on a good show, but he has a serious message about biodiversity and the survival of the human race, writes MARY LOVELL-SMITH.   Imagine bandages of daddy-longlegs' webs or antibiotics made from the glands of a bull ant.
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A vaccine against a sperm-related protein made male monkeys temporarily infertile, an approach that might lead to a contraceptive for men, researchers report.
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Now, researchers are pointing to a promising new method -- a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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Endangered black-footed ferrets are reproducing more and surviving longer in the wild in Arizona than they have since recovery efforts began nearly a decade ago, according to wildlife biologists.
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These pachyderms aren't just going after peanuts.
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A species of parasitic wasp releases a potent chemical before beating a retreat, behavior that could hold clues for how to better use the wasps as natural pest controls.
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A study by State University of New York researchers says heat generated from laptops can significantly elevate the temperature of the scrotum, potentially putting sperm count at risk.
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Midwestern spiders always get big as they prepare to lay eggs, but this year they're even fatter thanks to a cool, wet summer that sustained their favorite snack - insects.    "Right now they're eating like kings," said Field Museum entomologist Petra Sierwald...
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Scientists have identified a new bug which has evolved in insects to attack humans.
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From post-coital cannibalism to love at first sight, the sex life of the African jumping spider is full of surprises, according to a new study.
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US biologists hope to make super-strong materials after identifying the genes behind the black widow spider's silk.