Non-tool-using rooks, Corvus frugilegus, solve the trap-tube problem

@article{Tebbich2006NontoolusingRC,
  title={Non-tool-using rooks, Corvus frugilegus, solve the trap-tube problem},
  author={S. Tebbich and A. Seed and N. Emery and N. Clayton},
  journal={Animal Cognition},
  year={2006},
  volume={10},
  pages={225-231}
}
The trap-tube problem is used to assess whether an individual is able to foresee the outcome of its actions. To solve the task, an animal must use a tool to push a piece of food out of a tube, which has a trap along its length. An animal may learn to avoid the trap through a rule based on associative processes, e.g. using the distance of trap or food as a cue, or by understanding relations between cause and effect. This task has been used to test physical cognition in a number of tool-using… Expand
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