"Basically we tried to understand how flapping wings work in the water." This is an Inside Science story. The ancient ancestors of penguins gained their ability to swim at the expense of flight, ...

Whether small or almost tall, penguins are social creatures, living in communities for mutual protection, role modeling and social satisfaction. In frigid waters, they are gold medal swimmers.

The image most people have of penguins is how they look on land — wearing their flightlessness as a burden for all to see, along with those smart little dinner jackets of theirs. Yet the first time ...

Penguins may look adorable waddling on ice, but these birds are far more complex than they seem. From deep-sea dives to ...

This article was originally on a blog post platform and may be missing photos, graphics or links. See About archive blog posts. SAO PAULO, Brazil — More than 370 penguins that mysteriously washed up ...

New Zealand has been a haven for earthbound birds for eons. The absence of terrestrial predators allowed flightless parrots, kiwis and moas to thrive. Now researchers are adding two prehistoric ...