A new theory of the origin of birds, traditionally believed to be driven by the evolution of flight, is now being credited to the emergence of enlarged skeletal muscles in birds. Their upright ...

Male birds tend to be better singers than females -- but does the basis for this difference lie in the brain or in the syrinx, their equivalent of our larynx? The researchers behind a new study ...

Migrating thousands of miles every year requires insane amounts of energy. But that’s still nothing compared to the amount of water birds need to remain hydrated… and the drastic steps birds take to ...