News tagged with sperm competition

Why fruit fly sperm are giant

In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large numbers of tiny sperm can increase the probability of successful fertilization, especially ...

dateMay 25, 2016 in Plants & Animals
shares19 comments 2

Testis size matters for genome evolution

In many primates, females mate with multiple partners, causing an often-intense competition amongst males to pass along their DNA to be king of the genome as well as the jungle.

dateMar 05, 2014 in Evolution
shares0 comments 0

Big sperm don't always win the race

When females mate with more than one male, each one's sperm has to compete to get to her eggs. Until now, researchers had thought the fastest sperm would dominate.

dateJan 31, 2014 in Evolution
shares0 comments 0