🏢 U.S. Department of Health and Human Services Organization

A study published in *Aerospace Medicine and Human Performance* examined U.S. Army parachute mishap fatalities from January 1, 2010, through December 31, 2015, using investigative records from the U.S

The article explores how local competition influences the evolution of spite, a behavior often overshadowed by altruism. It argues that the conditions favoring spite are less restrictive than previous