Examlex
24 karat gold contains % gold.
Bystander Intervention
The phenomenon where individuals witnessing an emergency or crime are more or less likely to assist the victim based on the presence of other witnesses.
Yell "Fire!"
A metaphorical expression or a literal action that suggests causing a sudden alert or panic, often used in discussions of human reactions in emergency situations.
Kitty Genovese
Kitty Genovese was a young woman whose 1964 murder in New York City became famous due to the widely reported (though later questioned) lack of intervention by numerous witnesses.
Reciprocal Altruism
A behavior in which an organism acts in a manner that temporarily reduces its fitness while increasing another organism's fitness, with the expectation that the action will be reciprocated in the future.
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