Add Yahoo as a preferred source to see more of our stories on Google. A male hourglass tree frog (Dendropsophus ebraccatus) with an inflated vocal sac used to produce calls. Your taste in music may ...

Plants and animals have evolved all sorts of ways to make themselves more appealing to potential mates—including colorful feet, flamboyant feathers, complex mating dances and sexual deception. Many ...

Mating at night does not necessarily lead to offspring, at least in flies: males produce a buzzing sound with their wings that can be perceived by bats. Stefan Greif from the Max Planck Institute for ...