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Mosquito sperm have a sense of smell

Mosquito sperm have a “sense of smell.” This unexpected discovery is reported in an article published in the online early edition of the Proceedings of...

For the good of the colony: Bacterial community success depends on...

For some microbes, the motto for growth is not so much “every cell for itself,” but rather, “all for one and one for all.” MIT...

Seeing in the Dark: How porpoises hear in one of the...

The Yangtze finless porpoise, which inhabits the high-traffic waters near the Three Gorges Dam in China, is highly endangered, with only about 1,000 animals...

Receptor may aid spread of Alzheimer’s and Parkinson’s in brain

Scientists at Washington University School of Medicine in St. Louis have found a way that corrupted, disease-causing proteins spread in the brain, potentially contributing...

Dad’s genes build placentas, study shows

Though placentas support the fetus and mother, it turns out that the organ grows according to blueprints from dad, says new Cornell research. The...

Chemical compound shows promise as alternative to opioid pain relievers

A drug targeting a protein complex containing two different types of opioid receptors may be an effective alternative to morphine and other opioid pain...

Researchers discover new shapes of microcompartments

In nature and engineering, microcompartments -- molecular shells made of proteins that can encapsulate cellular components -- provide a tiny home for important reactions. In bacterial organelles, for example, microcompartments known as carboxyso...

Words help people form mathematical concepts

Language may play an important role in learning the meanings of numbers, scholars at the University of Chicago report. A study based on research on deaf people in Nicaragua who never learned formal sign language showed that people who communicate ...

Female fish — and humans? — lose interest when their male...

You may think of your love for your mate as the noble emotion of a pure heart, but some primitive parts of your brain are taking a decidedly more pragmatic approach to the subject, according to Stanford biologists. In experiments with African ci...

Multiple fathers prevalent in Amazonian cultures

COLUMBIA, Mo. -- In modern culture, it is not considered socially acceptable for married people to have extramarital sexual partners. However, in some Amazonian cultures, extramarital sexual affairs were common, and people believed that when a woma...

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