human
Is it true that a hummingbird can hover?
assistant
Yes, a hummingbird can hover. It is an amazing feat of nature and science. A hummingbird's wings are so small that they cannot move fast enough to generate lift without flapping, so the hummingbird must rely on its rapid wing beats to stay aloft. The bird then uses its tail feathers to create an air cushion which allows it to hover in mid-air for up to 20 seconds at a time.