Joan Silk Quotes

Yet, potential recipients sometimes displayed begging gestures, suggesting that at least they had some understanding of the other's role in delivering reward to them.

- Joan Silk

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Potential | Recipients | Displayed | Begging | Gestures |

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This is the first experiment to show that chimps don't share the same concern for the welfare of others as do humans, who routinely donate blood ... volunteer for military duty and perform other acts that benefit perfect strangers. - Joan Silk

Nevertheless, chimpanzees were clearly motivated to obtain rewards for themselves, but not to provide rewards for other group members. - Joan Silk

Yet, potential recipients sometimes displayed begging gestures, suggesting that at least they had some understanding of the other's role in delivering reward to them. - Joan Silk