Evolutionary pressures on primate intertemporal choice

What is it about?

This study shows that body size and associated traits (brain size, life span, home range size) correlate with primate species' ability to wait for delay rewards. Social group size and brain size relative to body size did not correlate with the ability to wait.

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Why is it important?

This study suggests that large-scale species-level factors such as body size can influence these choices, highlighting the importance of evolutionary forces shaping decision making.