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Male Broad-tailed Hummingbirds perform dramatic aerial courtship dives to impress females. In a new study, scientists have shown that diving males closely time key events to produce a burst of signals for the viewer. They synchronize maximal horizontal speed, loud noises generated with their tail feathers, and a display of their iridescent throat-patch (gorget), performed […]
An international team of palaeontologists has discovered that the flying reptiles, pterosaurs, actually had four kinds of feathers, and these are shared with dinosaurs -- pushing back the origin of feathers by some 70 million years.
Researchers witnessed a hummingbird defending its nest from what it interpreted to be a snake, but was actually a caterpillar of the moth Oxytenis modestia.
