| Go travelling global warming research paper sources If there were not a video of its behaviour to be seen on YouTube, no one would believe that a crow could become the inseparable companion of a domestic cat; mind you, it was an American crow, Corvus brachyrhynchos, and not a British carrion crow, Corvus corone corone. The New England crow play-wrestles with the cat and even feeds it scraps it has scavenged. The New Caledonian crow can manufacture its own tools; the Spanish crow is more co-operative than the British.
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