Wasps that recognize faces cooperate more, may be smarter

A new study of paper wasps suggests social interactions may make animals smarter. The research offers behavioral evidence of an evolutionary link between the ability to recognize individuals and social cooperation.

Wolves and dogs appear to remember where people hid food

In a study involving several wolves and dogs, both animals performed better at finding hidden food if they had observed the food being hidden by a person—suggesting that they remembered where the food was, and did not rely ...

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