Many species of birds and other vertebrates form pair bonds and mate with just one other individual for much of their lives. But the unions don’t always work out. Scientists want to know the underlying factors.

Advances in genetics in recent years has revealed that many apparently exclusive pairs in fact sometimes mate with individuals other than their partner, but social monogamy is widespread.

Researchers show that Drosophila melanogaster males are capable of producing more modes of courtship song with their wings than previously thought.

A unique courtship dance clued researchers in to the fact that they had a new species on their hands.

The whip spider senses the world in weird and wonderful ways.

A survey of sounds from birds to whales to fruit flies to fish

A round-up of recent discoveries in behavior research

A round-up of recent discoveries in behavior research

Three teams identify different components of the female Drosophila nervous system that govern mating behaviors.

Sex on Earth, Wild Connection, The Classification of Sex, and XL Love

Scientists devise a precision-targeted system for training, tracking, and tweaking fruit fly social behavior.

Observe the sinuous sensuality of mating brook lampreys (Lampetra planeri).

Watch flightless dung beetles (Circellium bacchus), sneaky copulators and crap connoisseurs, do their thing in South Africa.

Blue badges that make female lizards less attractive to potential mates are paradoxically common.

Female spiders prefer sperm from males with gifts, a study shows.

Male fruit flies use a sensory system in their legs to help determine whether a potential mate is from a different species.