When I say I'm raising my puppy to be a service dog and will give him away, people always ask me how I could do that? The ...

The plausibility of the parochial altruism hypothesis depends partly on the likelihood that warfare was commonplace during human evolutionary history, a claim lent some support by archaeological ...

Dallas-Made Documentary Gets to the Heart of Extreme Altruism Donald Griswold’s Abundant, which screens this summer, spotlights the motives for anonymous kidney donors.