Scientists have long thought that early land vertebrates developed legs for moving around on land well before their feeding systems and dietary habits changed enough to let them eat a land-based diet.
Land animals developed legs millions of years before their feeding systems changed enough to let them eat a strictly land-based diet, US paleontologists say.
Day in Pics: 31st January
Showbiz World - January 31, 2015
Playboy Super Bowl XLIX Party