1.
Long recovery from mass extinction seen
LIVERPOOL, England, April 24 (UPI) -- British scientists at the University of Liverpool say men become more jealous of dominant males when their female partner is near ovulation.
Previous studies suggested women's preferences for male physical appearance vary according to their fertility status. During ovulation women tend to find masculine looking men more attractive and prefer their voices and odor -- traits linked with high testosterone levels, demonstrating good genetic qualities that can be passed to offspring.
Now the researchers have determined men sense such a preference shift in their female partners and find masculine men more threatening during their partner's most fertile phase.
Rob Burriss and Anthony Little of the university's School of Biological Sciences, also found men only behave in such a way if their female partner does not use oral contraception -- and is, therefore, more fertile.
The findings appear in the journal Evolution and Human Behavior.
|
|
|
|
|
|
| Additional Science News Stories | |
MIAMI, May 30 (UPI) --
The man who bit off parts of the face of a homeless man in Miami found his victim sleeping in the shade of elevated train tracks, video footage shows.
|
NEW YORK, May 30 (UPI) --
The first installment of the American miniseries "Hatfields & McCoys" was seen by 13.9 million total viewers when it debuted, the History channel said.
|
ITHACA, N.Y., May 30 (UPI) --
The genome of the tomato has been decoded, a step toward improving yield, nutrition, disease resistance, taste and color of the tomato, U.S. researchers say.
|
NEW ORLEANS, May 30 (UPI) --
A panel of astrologers at a conference in New Orleans unanimously predicted U.S. President Barack Obama will win his re-election bid in November.
|
| Stories | Photos | People | Comments |
View Caption
