Kea Parrots Surprise Scientists By Demonstrating They Understand Probabilities

Several kea parrots were trained to associate black tokens with a food reward and orange pegs with none. When they were given a choice from clear jars with different black/orange ratios, the keas picked tokens from the blacker jars.

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March 10, 2020 at 07:27PM
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Kea Parrots Surprise Scientists By Demonstrating They Understand Probabilities