News tagged with anal sex
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Researchers reveal secrets of duck sex: It's all screwed up
Dec 23, 2009 |
3.9 / 5 (11) |
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Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely ...
High risk of colorectal, endometrial and Lynch syndrome cancers for MSH6 mutation carriers
Dec 22, 2009 |
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People carrying the germ-line MSH6 mutation are at high risk by age 80 years for colorectal and endometrial cancers and any cancer associated with Lynch syndrome, according to a new study published online December 22 in the ...
New human reproductive hormone could lead to novel contraceptives
Dec 22, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- Nearly 10 years after the discovery that birds make a hormone that suppresses reproduction, University of California, Berkeley, neuroscientists have established that humans make it too, opening ...
Feds mull regulating drugs in water
Dec 22, 2009 |
3 / 5 (2) |
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(AP) -- Federal regulators under President Barack Obama have sharply shifted course on long-standing policy toward pharmaceutical residues in the nation's drinking water, taking a critical first step toward regulating some ...
Meddling in mosquitoes' sex lives could help stop the spread of malaria, says study
Dec 22, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Stopping male mosquitoes from sealing their sperm inside females with a 'mating plug' could prevent mosquitoes from reproducing, and offer a potential new way to combat malaria, say scientists ...
Protein that represses genes may play role in cell growth
Dec 21, 2009 |
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(PhysOrg.com) -- A Cornell study shows the protein not only activates some genes involved in the regulation of cell growth and signaling, but also may play a role in preventing cancers by inhibiting cell proliferation.
Microcephaly genes associated with human brain size
Dec 21, 2009 |
3.7 / 5 (3) |
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A group of Norwegian and American researchers have shown that common variations in genes associated with microcephaly - a neuro-developmental disorder in which brain size is dramatically reduced - may explain differences ...
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