But all mammals have fatigue, right? Maybe they rest a lot more than we do, though. And we used to too: for most of our history, humans used to work for like 2 to 4 hours a day!
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But all mammals have fatigue, right? Maybe they rest a lot more than we do, though. And we used to too: for most of our history, humans used to work for like 2 to 4 hours a day!