Since gay couples have fewer children, the high frequency of same-sex relationships in humans is puzzling from an evolutionary point of view. Perhaps there are social advantages such relationships confer on a group, or perhaps ...
Evolution
Oct 12, 2023
0
19
The main reason for an unbalanced sex ratio in most countries is gender-selective migration. Without sex-selective international migration, country-level sex ratios for young adults would be balanced in almost all countries ...
Social Sciences
Oct 11, 2023
0
1
The research group of Dr. Claudia Keller Valsecchi (Institute of Molecular Biology, Mainz, Germany) and their collaborators have discovered the master regulator responsible for balancing the expression of X chromosome genes ...
Plants & Animals
Oct 6, 2023
1
109
One difference between men and women has been well documented by economists, psychologists and biologists—that women are tend to be more cautious and take fewer risks. Evidence has also been gathered about how this difference ...
Social Sciences
Oct 5, 2023
0
1
To date it has been unclear exactly how the sex of a bee is determined. A research team from Heinrich Heine University Düsseldorf (HHU) including biologists and chemists has now identified a key gene and the molecular mechanism ...
Plants & Animals
Oct 4, 2023
0
93
Comedian and actor Russell Brand has been accused of abuse, including sexual assault and rape, by four women. The allegations—which Brand denies—include the sexual assault of a woman who says she was in a relationship ...
Social Sciences
Sep 28, 2023
0
1
There are many kinds of sexual situations people can get into—everything from committed monogamous relationships to a one-night stand. But friends with benefits (FWB) situations are often still seen as controversial, perhaps ...
Social Sciences
Sep 6, 2023
0
1
Across the U.S., legislators are debating how and when sex and gender should be discussed in the classroom and beyond. Specifically, these bills are considering whether anything beyond male or female can be included in library ...
Education
Aug 31, 2023
0
6
In the intense male–male competition for females, males often develop alternative reproductive tactics to achieve successful reproduction through unconventional means. These tactics often arise from their own condition ...
Plants & Animals
Aug 22, 2023
0
1
As butterflies flit among flowers, they don't all view blossoms the same way. In a phenomenon called sexually dimorphic vision, females of some butterfly species perceive ultraviolet color while the males see light and dark. ...
Plants & Animals
Aug 10, 2023
0
502
