New finding on origin of avian predentary in Mesozoic birds

The predentary bone is one of the most enigmatic skeletal elements in avian evolution. Located at the tip of the lower jaw, this bone is absent in more primitive birds and in living birds; it is thought to have been lost ...

China confirms first human case of H7N4 bird flu

China has confirmed the first human case of H7N4 bird flu, prompting Hong Kong to issue a health warning for those travelling to the mainland during the busy Lunar New Year holiday.

Differences in feathers shed light on evolution of flight

The asymmetrical flight feathers of their wings are among the most distinctive features of living birds. But how are these feathers actually constructed, and when did they first appear in evolutionary history?

page 1 from 2