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Palaeontology: Ancient avian aria from Antarctica

A discovery of the sound-producing vocal organ known as the syrinx in a bird fossil from the end of the 'age of dinosaurs' highlights the anatomical basis for myriad aspects of avian social and behavioural evolution.
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Fossil evidence of the avian vocal organ from the Mesozoic

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From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx. Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibr...

66-Million-Year-Old 'Squawk Box' Helped Duck Relative Go Honk | Video

Academics / General Science : Live Science

The discovery of a more than 66-million-year-old syrinx, the vocal organ of a bird, indicates that ancient birds living during the dinosaur age sang just like modern birds

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