This is an activity once believed to be exclusive to humanity. But as our understanding of the natural world grows, it demonstrates that things like freewill (if it even exists) occur in species other than homo sapiens sapiens.

Read more about these damn dirty apes.

(Those who wish to refute the science because it challenges their unfounded belief in a bronze age book of local myths please read the entire article before you shut off your mind and start making equivocations.)

Apes Are Thinking About Thinking
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