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 ...

An enormous meteor spelled doom for most dinosaurs 65 million years ago. But not all. In the aftermath of the extinction event, birds—technically dinosaurs themselves—flourished. Scientists have spent ...

A 67-million-year-old Tyrannosaurus rex fossil nicknamed "Gus" has become the world's most expensive dinosaur fossil after ...

Birds descended from theropod dinosaurs by the Late Jurassic, but our understanding of the earliest evolution of the Avialae, the clade comprising all modern birds but not Deinonychus or Troodon, has ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? For years, scientists have split neoaves (which make up 95 percent of bird species) ...

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, ...

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