Coupling

Convergent evolution?

The more Dr. Lewis watched firefly courtship, the clearer it became that the females were carefully choosing mates. They start dialogues with up to 10 males in a single evening and can keep several conversations going at once. But a female mates with only one male, typically the one she has responded to the most.

Carl Zimmer, “Blink Twice if You Like Me”, New York TImes, 30 June 2009, p. D1.

Men and women are rotated to meet each other over a series of short "dates", usually lasting from 3 to 8 minutes depending on the organization running the event. At the end of each interval, the organizer rings a bell or clinks a glass to signal the participants to move on to the next date. At the end of the event participants submit to the organizers a list of who they would like to provide their contact information to.

“Speed Dating”, Wikipedia, 25 June 2009.