Unique vocal organ enabling birds to sing 'developed 66 million years ago'

Unique vocal organ enabling birds to sing 'developed 66 million years ago'
 

But the earliest syrinx, an arrangement of vibrating cartilage rings at the base of the windpipe, was still a long way from producing the lilting notes of a song thrush or blackbird.
Scientists believe the extinct duck and goose relative that possessed the organ was only capable of making honking noises.
The bird, Vegavis iaai, lived during the Cretaceous era. Although its fossil bones were unearthed from Vega Island in Antarctica in 1992, it was not until three years ago that experts spotted the syrinx.
All birds living today are descended from a particular family of dinosaurs that... read more

 
12 October 2016 in Regional West, Views: 30
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