Scientists have discovered that wild spider monkeys have similar eating habits to humans. Now that doesn't mean they dine at fast food restaurants or frequent juice bars, but it turns out that these primates don't try to maximize their daily protein intake when surplus food is available, but they instead regulate their diet so that it remains about the same throughout the seasons and when different foods are available.
It has previously been thought by scientists that human eating habits originated sometime during the Palaeolithic era (between 2.4 MYA – 10,000 YA). But if spider monkeys also share this eating behavior, it could mean that the habit of maintaining a regulated daily protein intake is older than originally thought.
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