As peahens keep choosing males with bigger tails, the result is what's called a runaway selection process.

By comparison, females choosing males beneath a green light arbitrarily picked males of either color.

"If we choose males from a distant air base to bomb the mutineers out of existence, then, will it truly solve the problem?"

Most gardeners drawn to ginkgoes' beauty would rather avoid smelly seeds, so many choose males.

They mate indiscriminately, often choosing males of another species.

At the same time, the bowerbird has become an important case study in theories of how females choose males.

The females choose large males that are successfully defending prime breeding sites which the females find attractive.

It is believed that females choose males who are faster at drumming regardless of size due to viability.

Due to this correlation it is hypothesized that females choose males without ornamentation to avoid aggression from the males.

The function of the long tail is assumed to be related to sexual selection, with females choosing males based on the length of the tail.