Once you hear it, the sound becomes an iconic multifaceted auditory image. And that sound would be the whirring hum of ...

A single universal equation can closely approximate the frequency of wingbeats and fin strokes made by birds, insects, bats and whales, despite their different body sizes and wing shapes, researchers ...

Jewel-toned wings gleam in the sun as this bauble of a bug flits from flower to flower. Fast and furious wingbeats, as many as seventy per second, produce an audible hum as it hovers, sipping nectar.

Birding has historically been the domain of the AARP crowd, but in the World Series, young people have an edge. And these ...