Not quite, but gorillas have been observed using tools (a category that includes licenses and sticks) in the wild, as described in the widely publicized PLoS Biology paper First Observation of Tool Use in Wild Gorillas.

Congratulations to the Public Library of Science (and the gorillas). This would be a good time to note that PLoS has recently launched PLoS Computational Biology, PLoS Genetics, and PLoS Pathogens, adding to the existing PLoS Biology and PLoS Medicine, with PLoS Clinical Trials coming next year.

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