🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiPortuguêsSvenskaРусскийالعربيةفارسی한국어中文日本語EntityQ429787· pop 22· linked from 349 articlesreciprocal altruismbehaviour whereby an organism acts in a manner that temporarily reduces its fitness while increasing another organism's fitnessAvailable in 21 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaConnectionssocialityEntityCharles DarwinEntityCategoriesAltruismEvolutionary biologyEvolutionary psychologySymbiosis