Male fruit flies like to have a variety of sexual partners, whereas females prefer to stick with the same mate – or move on to his brothers.
Plants & Animals
Sep 24, 2013
0
0
(PhysOrg.com) -- Scientists in Perth, Western Australia, investigating the costs of brothers and sisters in contemporary Australian society, have discovered that girls with older brothers tend to start menstruation later, ...
When predicting future global population growth, sometimes scientists look to the past. Using a database with historical records that began in 871 A.D., an anthropologist at the University of Missouri was able to show reproductive ...
Social Sciences
Jun 8, 2016
5
254
Cannibalism is common throughout the animal kingdom. It can be strange to think about real life "battle-royales" playing out in nature such that many individuals enter and only a few emerge victorious, but in the tropics ...
Plants & Animals
Mar 28, 2022
0
85
Our siblings play a central role in our childhoods, so it stands to reason they influence our personality in the long term. In particular, researchers have long been interested in how growing up with a sister compared to ...
Social Sciences
Aug 25, 2022
0
33
Researchers who examined family genealogies from Finland found that the presence of same-sex elder siblings increased the probability that people would disperse to new lands, whereas having opposite-sex siblings had less ...
Evolution
Jul 25, 2016
0
9
I review gadgets every week, and I love it, but nothing makes me giddy like trying out a new solar charging system.
Consumer & Gadgets
Jul 5, 2013
0
0
(PhysOrg.com) -- “Mom always liked you best.” The Smothers Brothers aside, chances are if you’ve got a sibling, this is something you’ve either heard or said at some point in your life. Many people feel that their ...
Other
Jan 19, 2009
0
0
Plants may not have eyes and ears, but they can recognize their siblings, and researchers at the University of Delaware have discovered how.
Plants & Animals
Oct 14, 2009
0
0
Fledglings of a southern African bird species threaten suicide to blackmail their parents into bringing them more food, scientists said Wednesday.
Plants & Animals
Apr 9, 2013
0
0
