With bloated bellies and hairy legs, female flies try to look bigger to get food from courting mates. But male flies, in turn, have sharpened their eyesight to call their bluff. A new study suggests ...

The mayfly’s "dance" is a poignant, high-stakes ballet. Emerging after years underwater, these delicate insects have a single day to procreate. Because they lack mouthparts, they cannot eat; their ...

The female receives a dead insect as a gift from the male during mating. The gift provides the female with the necessary protein to produce eggs. If the male arrives empty-handed, he is rejected. With ...