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Birds, humans evolved same talking system
Humans and birds have separately developed the same musical solution to talking and singing, an evolution study has found.
Both employ a system that involves sound pulses being generated hundreds or thousands of times per second as folds of tissue rapidly vibrate.
The "myoelastic-aerodynamic" theory (Mead) was first proposed in the 1950s to explain the way vocal cords in the larynx oscillate to create sound.
Now new research suggests exactly the same mechanism is employed by both humans and birds, despite them having completely different vocal organs.
http://www.sbs.com.au/news/article/2015/11/30/birds-humans-evolved-same-talking-system
