Sexual selection can take place after mating, not just before, research on C. elegans worm sperm finds.

Baboons are pretty good, but not perfect, at keeping their family and romantic lives from getting too intertwined. Here's where their social filter fails.

New findings suggest the tweets of a little song sparrow and its "bird brain" are a lot more complex and akin to human language than anyone realized.

New research is "an arrow through the chest" for the theory that humpback whales sing to attract mates. Instead, their song is much closer to sonar.

Two invasive termite species in South Florida allowed researchers to better understand how they breed and form new colonies.

If you're a male chimp looking for love—or offspring—it pays to make friends with other males.

A male fruit fly will chase a female for more than 26 yards—that's 9 miles—vibrating its wings in a fruit fly love song. But first he needs to be aroused.

When Brood X cicadas emerge this summer, it will be to a world drastically altered from the one their ancestors knew.

A new "couple simulation" works with more of the nuanced business of human mate selection.

Glass frogs that live near loud streams will add a friendly wave or "dance" to their love calls to attract mates.