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8 de abr. de 2021 · Dig into the incredible fighting, feeding, and flying capabilities of hummingbirds. -- In just a matter of seconds, hummingbirds can perform astonishing aerial acrobatics, eat lunch in midair...
Regina Dugan: From mach-20 glider to hummingbird drone. http://www.ted.com "What would you attempt to do if you knew you could not fail?" asks Regina Dugan, then director of DARPA, the Defense ...
Hummingbirds. Tiny, pugnacious, jewel-like hummingbirds are relatively easy to attract to a garden and fun to have around. A careful look at hummingbirds provides a window into the elegance of adaptation in the natural world.
In just a matter of seconds, hummingbirds can perform astonishing aerial acrobatics, eat lunch in midair, pollinate a flower, even escape threats while upside-down. And they can do this all while achieving sustained hovering flight— an aerial feat no other bird can perform. How do they do it?
A flash of green and red, the Ruby-throated Hummingbird is eastern North America’s sole breeding hummingbird. These brilliant, tiny, precision-flying creatures glitter like jewels in the full sun, then vanish with a zip toward the next nectar source.
A flash of green and red, the Ruby-throated Hummingbird is eastern North America’s sole breeding hummingbird. These brilliant, tiny, precision-flying creatures glitter like jewels in the full sun, then vanish with a zip toward the next nectar source.
Hummingbirds will glean these tiny protein bundles from bark and leaves, or simply in midair—a technique known as hawking. In fact, scientists studying one hummingbird found that she ate nothing but arthropods for two weeks!
