Sperm can modulate their energetics by regulating their flagellar waveform—how the sperm oscillate their tails—in order to adapt to varying fluid environments, potentially optimizing their motility and navigation within ...
Cell & Microbiology
Nov 1, 2023
0
61
A research group at the Graduate School of Science, Nagoya University in Japan has used artificial intelligence to determine that piezo, a channel that receives mechanical stimuli, plays a role in controlling the mating posture ...
Plants & Animals
Jun 27, 2023
0
14
A team of researchers working at China's Fourth Hospital of Harbin Medical University has developed a new kind of male contraceptive that is easily reversed. In their paper published in the journal ACS Nano, the group describes ...
Achieving pregnancy has been shown to be more likely between partners who carry dissimilar human leucocyte antigen (HLA) immune genes. Accordingly, humans are expected to choose HLA dissimilar reproductive partners. Earlier ...
Evolution
Aug 19, 2020
0
124
Neanderthals and modern humans, tens of thousands of years ago, had sexual intercourse with each other in Europe and Asia. For this reason, we as modern humans still carry Neanderthal DNA in us. Researchers from Edinburgh ...
Archaeology
May 1, 2014
0
0
(PhysOrg.com) -- The duration of sexual intercourse differs wildly across the animal kingdom. Now researchers seeking to understand the evolutionary significance of lengthy copulation duration have found evidence that it ...
Plants & Animals
Dec 9, 2011
4
0
(PhysOrg.com) -- Amyloid protein structures are best known for the troubles they pose in the brains of Alzheimer's patients. Now researchers are trying to exploit their presence in a very different place - in semen - to find ...
Biochemistry
Sep 28, 2010
0
0
(PhysOrg.com) -- As a new mother herself, Brenda Lohman admits to being shocked by the results of a new study she co-authored. It found that among nearly 1,000 low-income families in three major cities, one in four children ...
Social Sciences
Aug 13, 2009
6
0
In her first publication in the journal Forensic Science International, Ms. Ruby Dixon demonstrated that bacteria can be transferred between a male and female during sexual intercourse and there is a possibility that bacterial ...
Other
May 17, 2023
0
5
One in four women in the United States will experience forced intercourse by the time they're 44, and the risk is greater for women who have attended little or no college compared to those who attend four or more years of ...
Social Sciences
Nov 22, 2017
0
4
