Melodies of Singing Birds: Result of a Rare Evolutionary Event

Over millions of years, sound production was taken over by the syrinx, possibly because the syrinx was much better in producing varieties of sounds.

Altaria (Pokémon) - Bulbapedia, the community-driven Pokémon

Evolution of Feathers

Evolution of Feathers

Baby Bird Skeleton Could Provide Insight into Ancient Bird Evolution

Extreme climate shifts may have helped drive reptile evolution

Statistical Evolutionary Laws in Music Styles

We Helped Scientists Track Birds This Summer. - The New York Times

These songbirds sing for hours a day to keep their vocal muscles

These songbirds sing for hours a day to keep their vocal muscles

Allopatric montane wren-babblers exhibit similar song notes but