Scientists find capacity for abstraction not necessarily uniquely human in study of ravens’ behaviour when hiding foodRavens can imagine being spied upon by a hidden competitor,showing a capacity for abstraction once thought to be exclusively human, according to a new study.
Scientists believe shown that the birds lift additional care to hide food if they suspect their movements are being monitored by another raven, or even when the moment bird is not actually there.
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Source: theguardian.com