article_snippet: Other experiments involving the same family of birds found that Caledonian crows can use up to three tools in sequence to obtain food, which the University of Oxford’s Behavioural Ecology Research Group said is the first demonstration of spontaneous sequential tool use in a species other than humans.
article_snippet: Urban-living carrion crows have been witnessed learning to use road traffic for cracking nuts.
article_snippet: Other experiments involving the same family of birds found that Caledonian crows can use up to three tools in sequence to obtain food.
article_snippet: Urban-living carrion crows have been witnessed learning to use road traffic for cracking nuts.