PDF Hummingbirds (Readers Advance Science Readers)

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Engineers study hovering bats and hummingbirds in Costa Rica

June 26, Signs of the color blue have been found in a fossil for the first time. The reason: Those heftier hummers had relatively bigger muscles and wings than smaller species, she and her colleagues report today in Science. Several other trends emerged. Maneuvering behaviors that differed from species to species generally came down to structural and physiological traits such as wing size, wing surface area, weight, and muscle mass.

Finally, when the team grouped the birds based on their flight patterns, they found the clusters reflected the hummingbird family tree: More closely related species had similar flight patterns. As a result, adds Robert Dudley, an organismal biologist at UC Berkeley, even more engineers are now studying animal flight than biologists.

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How to contact the news team. Original written by Taylor Kubota. Note: Content may be edited for style and length. Science News. Watching every feather It is simple to imagine how a flying animal supports itself by flapping downward, but in order to avoid exaggerated bobbing up and down, hovering animals must maintain this support while flapping upward as well.

Different ways to hover The researchers found that the bats and hummingbirds all exerted a similar amount of energy relative to their weight during these flights but that the hummingbirds, fruit bats and nectar bats all hovered in very different ways.

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Story Source: Materials provided by Stanford University. Biomechanics of hover performance in Neotropical hummingbirds versus bats. Science Advances , ; 4 9 : eaat DOI: ScienceDaily, 26 September Stanford University. Engineers study hovering bats and hummingbirds in Costa Rica. Retrieved July 9, from www.

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