{"fact":"Crows seem to learn tool preferences from their parents. Young crows with pandanus-tool-using parents often develop the same preference.","context":"All juveniles that developed a preference for pandanus tools had at least one parent with the same preference. We have also observed that two juveniles of a pair in which both partners preferred to use stick tools also developed a preference for stick tools (Holzhaider et al., unpublished data).","source":"Jennifer C. Holzhaider; Gavin R. Hunt; Russell D. Gray, The development of pandanus tool manufacture in wild New Caledonian crows, 10.1163/000579510x12629536366284","index":469}