Who’s a clever boy, then? Goffin’s cockatoos, a species of small parrot native to Australasia, have been shown to have similar shape-recognition abilities to a human two-year-old.
Though not known to use tools in wild, the birds have proved adept at tool use in captivity. In a recent experiment at the University of Vienna and the University of Veterinary Medicine Vienna, cockatoos were presented with box with a nut inside it. The clear front of the box had a ‘keyhole’ in a geometric shape, and the birds were given five differently shaped ‘keys’ to choose from. Inserting the correct ‘key’ would release the nut.
Denne historien er fra April 2018-utgaven av BBC Earth.
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Denne historien er fra April 2018-utgaven av BBC Earth.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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