The Pakistani popcorn seller who built his own plane

The engine is from a roadcutter, the wings are burlap, the wheels are borrowed from a rickshaw: a popcorn seller has caught the attention of the Pakistan Air Force by building his own plane.

Birds help each other partly for selfish reasons

Up to now, researchers have believed that birds stay at home and altruistically help raise younger siblings because this is the only way to pass on genes when you cannot breed yourself. But this idea is only partially true. ...

When young bluebirds don't leave the nest

For a young male western bluebird, it might be better to live with one's parents as a helper for a year before starting a nest of one's own, according to a new study in Behavioral Ecology.

page 2 from 2