Assertion: altruism | /r/HasProperty | advantageous
Facets:
value: at the group level
type: LOCATION
Source sentences:
text: However, it is possible that altruism may be advantageous at the group level.
text: Even if altruism is advantageous at the group level, within any group altruists are liable to be exploited by selfish ‘free-riders’ who refrain from behaving altruistically.