The chance of a male fathering offspring may not be a simple race to the egg, but is influenced by the length of the male's sperm, say scientists from the University of Sheffield.
A new study shows that college students in online courses give better evaluations to instructors they think are men - even when the instructor is actually a woman.
When it comes to weathering the slings and arrows of outrageous fortune, male macaques get by with a little help from their fellow dudes, according to new research.
A study from the University of Exeter has found that male flies die earlier than their female counterparts when forced to evolve with the pressures of mate competition and juvenile survival. The results could help researchers ...
Many male animals have multiple displays and behaviours to attract females; and often the larger or greater the better.
The expression of a gene involved in female birds' color vision is linked to the evolution of colorful plumage in males, reports a new study from the University of Chicago. The findings, published Nov. 26 in the Proceedings ...
Nearly four decades of observations of Tanzanian chimpanzees has revealed that the mothers of sons are about 25 percent more social than the mothers of daughters. Boy moms were found to spend about two hours more per day ...
Previous research has shown that infanticide by males is widespread in many mammal species, but most commonly occurs in those species where females live in social groups dominated by one or a few males.
In a long-term study of interactions between chimpanzees in the famous Gombe National Park in Tanzania, researchers have found that males who consistently bully females tend to father more babies with their victims.
New Zealand's endemic tui (Prosthemadera novaseelandiae) have a tendency to 'jump the fence' when looking to breed, a study by Massey University researcher Dr Sarah Wells shows.