The evolutionary benefits of warfare

Für Leute, die der englischen Sprache mächtig sind:
http://www.sciencemag.org/content/347/6220/385.3.full
Abstract:

Featured image

Livestock, such as cattle, cause strife among the Nyangatom people of East Africa
„PHOTO: RANDY OLSON/NATIONAL GEOGRAPHIC CREATIVE“

Many human societies engage in warfare, but given the mortal risks involved, many evolutionary anthropologists have wondered why.
Is there an evolutionary benefit to warfare? Glowacki and Wrangham tackled this question by studying the Nyangatom, a nomadic society in East Africa.
Nyangatom men carry out livestock raids to pay for the right to marry.
Men who were active cattle raiders had more wives and children than men who were not.
But they had to wait for this benefit. Young raiders give stolen livestock as gifts to paternal relatives.
They only benefitted later in life by inheriting the larger herds they helped to build.

Proc. Natl. Acad. Sci. U.S.A. 10.1073/pnas.1412287112 (2014).

Viehdiebstähle für die Schwiegereltern werden belohnt !
Man fragt sich, ob diese Art der Nachbarschaftskriege einen evolutionären Vorteil für einen Stamm bietet, die den Nachteil von Tod und Zerstörung aufwiegt.

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