What cognitive trait's foundations were likely established in *Pica praepica* 19 million years ago?
Answer
Cunning, including recognizing faces or using tools
The endurance of the *Pica* lineage, surviving 19 million years of environmental fluctuations, suggests that the groundwork for their celebrated cunning was established very early on. The complex problem-solving capabilities required for survival during that time frame imply that the foundations for behaviors like recognizing faces or utilizing tools—traits associated with high intelligence in modern magpies—were already being selectively favored in ancestors like *Pica praepica* during the Miocene epoch.

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