One of the first toothed birds ever discovered, Hesperornis paddled with its hind feet to hunt fish and evade marine reptiles in warm, Cretaceous seas. UnexpectedDinoLesson via Wikimedia under CC ...

It took 150 million years for feathered dinosaurs to master flight and become the birds we see overhead today. By 125 million years ago, the Mesozoic skies were full of birds. But many of them were ...

Birds tend to be more colorful in the tropics, and scientists wanted to find out how they got there: if colorful feathers evolved in the tropics, or if tropical birds have brightly-colored ancestors ...

HIH Princess Takamado celebrates the arrival of nesting season in Japan with a selection of these structures made by ...