Skip to main content Skip to navigation

Why can birds fly, but we can’t?

Dr. Universe: How can birds fly when they flap their wings, but when we flap our arms nothing happens?  – Ravin, 9, London, UK

Dear Ravin,

Screen Shot 2016-07-07 at 9.05.40 AMNo matter how much you flap your arms or I flap my paws, gravity keeps us pulled to Earth. But when birds use their strong muscles to start flapping their wings, something amazing happens. » More …