More on crows and their use of tools. Do they think or is it automatic:- "Despite the striking results of the study, Dr St Clair cautions that 'We still can't say whether New Caledonian crows actually 'understand' how their tools function. But of course, this is also true of many humans I know!' "- Read more at: http://phys.org/news/2013-10-canny-crows-tools.html#jCp