[edit] Science -http://blogs.scientificamerican.com/thoughtful-animal/2012/01/16/snowboarding-crows-the-plot-thickens/ http://blogs.scientificamerican.com/thoug

[edit] Science -http://blogs.scientificamerican.com/thoughtful-animal/2012/01/16/snowboarding-crows-the-plot-thickens/ http://blogs.scientificamerican.com/thoughtful-animal/2012/0...