The interesting part for me is this: > The captive adults all did so spontaneously and exactingly. Rutz even tested seven recently hatched chicks, which had ne

The interesting part for me is this: > The captive adults all did so spontaneously and exactingly. Rutz even tested seven recently hatched chicks, which had never used sticks before and had no chances to observe tool-proficient adults. Their human keepers had been briefed to never use tools in front of them. > And yet, when confronted with a weekly baited log, all the chicks picked up nearby objects and tried their luck at probing. I'm very curious how much of the tool use is instinctive, how well they generalize to other situations, and how they learn and pass on concepts.