What’s Up With That: Birds Bob Their Heads When They Walk | WIRED Posted on January 21, 2015 by tonybarraza science!!! via Facebook http://wrd.cm/1yEnpIi Share this: Share on Facebook (Opens in new window) Facebook Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print Share on X (Opens in new window) X Like Loading... Related
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