Attraction is often treated as a mysterious force, but modern psychology and data science have increasingly pinpointed ...

A single gene that regulates testosterone levels in a 'crazy' species of shore bird controls the development of three wildly different types of males, a new study has found. Ruffs have long fascinated ...

The reason why a strange type of arachnid in New Zealand becomes one of three types of males—alpha, beta, and gamma—has been uncovered by scientists. These Forsteropsalis pureora arachnids, also ...

Long-legged arachnids called harvestmen are “trimorphic,” featuring three types of males. University of Auckland research is giving some clues as to how that happens. A male sexual hierarchy and the ...