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Discovery of species-wide tool use in the Hawaiian crow [Nature]

Subject terms : behavioural ecology, evolutionary ecology, tropical ecology, cultural evolution, animal behaviour

par Frédéric Magné - publié le

Only a handful of bird species are known to use foraging tools in the wild1. Amongst them, the New Caledonian crow (Corvus moneduloides) stands out with its sophisticated tool-making skills2, 3. Despite considerable speculation, the evolutionary origins of this species’ remarkable tool behaviour remain largely unknown, not least because no naturally tool-using congeners have yet been identified that would enable informative comparisons4. Here we show that another tropical corvid, the ‘Alalā (C. hawaiiensis ; Hawaiian crow), is a highly dexterous tool user.(...)

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