{"fact":"Young crows show a preference for objects they've observed being handled by a human foster parent, suggesting social learning influences their object choices.","context":"a choice experiment showed that they preferred to handle objects that they had seen being manipulated by their human foster parent.","source":"Ben Kenward; Christian Rutz; Alex A.S. Weir; Alex Kacelnik, Development of tool use in New Caledonian crows: inherited action patterns and social influences, 10.1016/j.anbehav.2006.04.007","index":41}