Altruistic behavior is often seen as an exclusively human characteristic. However, behavioral research has uncovered numerous examples of altruistic behavior in the animal kingdom. In a new study, ...

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In a new study, researchers have found that mice can instinctively exhibit rescue-like behavior toward anesthetized conspecifics—without any prior training or external rewards. The study, published in ...

In the proximate sense, this behavior of the ant is altruistic inasmuch that the ant is suffering a cost—death—to deliver a benefit to the parasite. However, the ant possesses no cognitive mechanisms ...

Each year, nearly 200 individuals in the United States donate one of their kidneys to a total stranger. If you are like many people, your first reaction to hearing this may be that anyone who would ...