{"fact":"Similar to kids learning from their parents, young crows often use tools left behind by adults, and many of these tools were just used by a parent, potentially demonstrating the preferred tool type.","context":"While adult crows at tables generally manufactured their own pandanus tools to extract meat, juveniles up to six months of age predominantly used tools that were discarded or placed on the table after use by an adult (Figure 9). Many of these tools had been used by a parent immediately before the juvenile picked it up.","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":468}