Guineafowl with a twist
New study by Robert Kambic demonstrates that avian bipedal locomotion isn't so simple.
Kambic, Roberts & Gatesy. 2015. Guineafowl with a twist: asymmetric limb control in steady bipedal locomotion. Journal of Experimental Biology. 218: 3836-3844; doi: 10.1242/jeb.126193