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  • RESEARCH HIGHLIGHT

Parrots give each other gifts without promise of reward

African grey parrot, named Lizzy, at Loro Parque in Tenerife, Spain.

African grey parrots bestow favours on others of their species— even those that can’t reciprocate. Credit: Anette Mertens

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Nature 577, 297 (2020)

doi: https://doi.org/10.1038/d41586-020-00019-2

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