{"fact":"Rooks' ability to hide and find food may be connected to their skill in understanding hidden objects, suggesting a link between caching and object permanence.","context":"Rooks, like other corvids, possess well-developed OP abilities, and these results support the idea that exertion of executive control is required to avoid “A-not-B” errors, rather than caching abilities or developmental age, as previously suggested.","source":"Francesca M. Cornero; Nicola S. Clayton, Object permanence in rooks (Corvus frugilegus): Individual differences and behavioral considerations, 10.3758/s13420-024-00637-0","index":638}