Animal intelligence

Cats, dolphins and one smart raven: the CIA’s secret animal spies
Science

Cats, dolphins and one smart raven: the CIA’s secret animal spies

In early 1974, Do Da was top in espionage class, on the way to becoming a high-flying CIA agent: he…
No fooling crafty crows on best plants for tool-making
Environment

No fooling crafty crows on best plants for tool-making

Like master artisans selecting the finest raw materials for their showpiece designs, New Caledonian crows identify the best plants for…
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