A few males are enough to fertilize all the females. The number of males therefore has little bearing on a population's growth. However, they are important for purging bad mutations from the ...

Canadian-US actor Keanu Reeves, supposedly a high-profile example of a "sigma male." (Photo by Mark RALSTON / AFP) (Photo credit should read MARK RALSTON/AFP via Getty Images) Are you tired of ...

Males are bigger than females, right? Generally, this is true of humans – imagine the extremes of Dwayne “The Rock” Johnson and singer Kylie Minogue. It is also true of other familiar mammals ...

New research is cutting male mammals down to size. While we may think of hulking elephant seal bulls or huge stags, these males appear to be the exception, rather than the rule. A new analysis of more ...

Early symptoms of cancer in males can include changes in bowel habits, the testicles, and urination. However, the signs will depend on the type of cancer. In some cases, symptoms do not appear until a ...