New research from the University of East Anglia shows that an evolutionary force known as 'sexual selection' can explain the persistence of sex as a dominant mechanism for reproducing offspring.
Scientists said Wednesday they had amassed the first evidence to back theories that people fall into two broad categories—promiscuity or faithfulness—when it comes to sex.
Sexual selection refers to species' selection for traits that are attractive to the opposite sex. This special type of natural selection enhances opportunities to mate, the tail of male peacocks being an iconic example.
What do you get when you mix theorists in computer science with evolutionary biologists? You get an algorithm to explain sex.
New research from the University of Exeter has shown that the sexually antagonistic gene for resistance to the pesticide DDT, which increases fitness in female flies but simultaneously decreases fitness in male flies, helps ...
Lucy and other members of the early hominid species Australopithecus afarensis probably were similar to humans in the size difference between males and females, according to researchers from Penn State and Kent State University.
Stegosaurus, a large, herbivorous dinosaur with two staggered rows of bony plates along its back and two pairs of spikes at the end of its tail, lived roughly 150 million years ago during the Late Jurassic in the western ...