The transition from a lumbering, heavy dinosaur body to the flight-adapted bird body plan is one of many fascinating episodes ...

A 150-million-year-old bird fossil, Zhengheornis, reveals the first step in the evolution of the short tails seen in modern ...

A newly identified bird from the Late Jurassic is helping fill one of the biggest gaps in bird evolution. Named Zhengheornis buyu, the tiny species had a shortened tail without the fused tailbone seen ...

The assembly of the volant bird body plan from the ancestral bulky dinosaurian condition is an enduring topic of evolutionary biology. The body plan of volant birds demonstrates a pronounced decrease ...

Few subjects in evolutionary theory have posed such intriguing puzzles for so long as the origin of birds. Evidence of avian beginnings has been elusive in the fossil record because birds' light, ...

Shapes of beaks and snouts come in an extraordinary range of forms, reflecting adaptations to different lifestyles and environments. Yet beneath this diversity lies a paradox: across birds and mammals ...

Modern birds evolved earlier than previously assumed — much earlier than the dinosaurs’ mass extinction — an event that seems to have had a limited impact on avian evolution Artist’s depiction of the ...

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