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Flightless Birds

REVEALED: Why Feathers First Evolved

| Tim Wogan | Posted 07.06.2014 | Science

The bladed, quill-like feathers of modern birds are essential for flight, and over millions of years they have become highly specialized for this purp...

REVEALED: Why Penguins Stopped Flying

Posted 05.22.2013 | Science

By: Megan Gannon, News Editor Published: 05/21/2013 04:14 PM EDT on LiveScience Humans spent centuries conspiring to fly, so it might be hard to i...

WATCH: Birds Don't Have To Fly To Be Awesome

Posted 05.25.2011 | Green

Join BBC Earth on Facebook for more incredible footage, photos and stories. People might wonder why some birds have wings but don't use them and mayb...