News tagged with reproductive behavior
Songbirds' elaborate cries for food show first signs of vocal learning
Jul 24, 2009 |
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(PhysOrg.com) -- Only a handful of social animals -- songbirds, some marine mammals, some bats and humans -- learn to actively style their vocal communications. Babies, for instance, start by babbling, their first chance ...
Genital stimulation opens door for cryptic female choice in tsetse flies
May 14, 2009 |
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Manipulation of male and/or female genitalia results in a suite of changes in female reproductive behavior in tsetse flies, carriers of African sleeping sickness.
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Researchers reveal secrets of duck sex: It's all screwed up
10 hours ago |
3.9 / 5 (7) |
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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 ...
Could acetaminophen ease psychological pain?
Medicine & Health / Psychology & Psychiatry
23 hours ago |
4 / 5 (4) |
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Headaches and heartaches. Broken bones and broken spirits. Hurting bodies and hurt feelings. We often use the same words to describe physical and mental pain. Over-the-counter pain relieving drugs have long been used to alleviate ...
Sniffing out clues to dogs' compulsive behavior
23 hours ago |
3.8 / 5 (4) |
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(PhysOrg.com) -- At first glance, a dog chasing its tail seems a harmless, if fruitless, pursuit. But for many dogs and their owners, the habit has a dark side, one that means endless hours and energy spent ...
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 ...
Enhanced sweet taste: This is your tongue on pot
Dec 22, 2009 |
4 / 5 (1) |
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New findings from the Monell Center and Kyushu University in Japan report that endocannabinoids act directly on taste receptors on the tongue to enhance sweet taste.
Chicago Cancer Genome Project studies genetics of 1,000 tumors
Dec 22, 2009 |
5 / 5 (2) |
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No two tumors are alike, but analyzing the genetics of cancers from different parts of the body may reveal surprising details useful for treatment and prevention.
Largest study of PGD children shows embryo biopsy is safe for singleton pregnancies
Dec 22, 2009 |
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The largest and longest running study of children born after preimplantation genetic diagnosis and screening has shown that embryo biopsy does not adversely affect the health of babies born as the result of a subsequent singleton ...
Modern behavior of early humans found half-million years earlier than previously thought
Other Sciences / Archaeology & Fossils
Dec 22, 2009 |
4.7 / 5 (14) |
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Evidence of sophisticated, human behavior has been discovered by Hebrew University of Jerusalem researchers as early as 750,000 years ago - some half a million years earlier than has previously been estimated ...
Mexico's conch shells yield clues into effects of warming
Dec 22, 2009 |
3 / 5 (1) |
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Divers plumb the turquoise depths of ocean waters some 100 kilometers south of this vacation paradise, in search of the distinctive queen conch shell prized by vacationers and souvenir-seekers.
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 ...
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