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Study: Women evaluate partners more negatively when estrogen is elevated -- and men know it
Righetti and her colleagues found that both women and their partners evaluated their relationships more negatively on days in which women had higher estradiol levels. As estradiol increased, women also evaluated their partner as less physically attractive.

“Women’s hormone levels change across their ovulatory cycles, and these changes are likely to affect their psychology and, perhaps, the way they feel toward their romantic partner. We found that the hormone that peaks just prior to ovulation, estradiol, was associated with more negative partner evaluation,” Righetti told PsyPost.

Women’s estradiol levels were also associated with their partners’ self-reported well-being. “Men also perceived their partner to be less satisfied when estradiol was high and, consequently, they experienced lower well-being,” Righetti said.

Despite the changes in sexual attraction, however, hormonal fluctuations were not associated with having sexual intercourse .
psychology  biology  behavior  sexuality 
yesterday by rmohns
Biodiversity Heritage Library
Inspiring discovery through free access to biodiversity knowledge.

The Biodiversity Heritage Library improves research methodology by collaboratively making biodiversity literature openly available to the world as part of a global biodiversity community.
art  biology  ecology  images  library 
yesterday by gdw
You Can Now Download 150,000 Free Illustrations of the Natural World | Smart News | Smithsonian Magazine
The artworks, collected by the open-access Biodiversity Heritage Library, range from animal sketches to historical diagrams and botanical studies
art  biology  free  nature  illustrations 
yesterday by gdw
Biodiversity Heritage Library’s albums | Flickr
Biodiversity Heritage Library

All photos are now public domain
biology  art  photography  nature  publicdomain 
yesterday by javajunky
Biodiversity Heritage Library
The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community.
images  library  art  biology  ecology  illustration  libraries  science  free  illustrations 
2 days ago by atran
Scientists warn humanity about worldwide insect decline | EurekAlert! Science News
Insect declines and extinctions are accelerating in many parts of the world. With this comes the disappearance of irreplaceable services to humans, the consequences of which are unpredictable. A group of scientists from across the globe has united to warn humanity of such dangers.
biodiversity  biology  climate  entomology  population  insect  collapse 
3 days ago by ivar

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