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Against this landscape's rhythms
Includes information about the Sierra Nevada area
A near fine hardcover in dust jacket
the familiar and the revelatory - as surprising and enticing as any beautiful
Using the format of a natural history field guide
On the Wing: Insects, Pterosaurs, Birds, Bats and the Evolution of Animal Flight Against this landscape's rhythmsAlexander guides readers through the anomalies of the flying world: hovering hummingbirds, unexpected gliders [squirrels, for instance], and the flyers that went extinct [pterosaurs]. Alexander also delves into wing origin theory and explores whether birds entered the skies from the trees down [as gliders] or from the ground up [as runners] and uses the latest fossil evidence to present readers with an answer.
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