| http://www.w3.org/ns/prov#value | - Clark calculated that the 50 miles per hour speed of the hummingbird at the fastest point in its descent is equivalent to it moving 383 times its body length each second???. ???During their courtship dive, male Anna???s hummingbirds reach speeds and accelerations that exceed the previous performance records for vertebrates undergoing a voluntarily aerial manoeuvre??? [The Independent], he says.
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