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Unique beak evolved with tool use in New Caledonian crow

Unique beak evolved with tool use in New Caledonian crow

  A 3-D reconstruction of the New Caledonian Crow skull with key measuring points. Credit: Matsui et al. (2016) It was as plain as the beak on a bird’s face. Cornell ornithologist and crow expert Kevin McGowan recalls the day in the late 1990s when he first saw stuffed specimens of the New Caledonian crow. […]