Life histories, blood revenge, and reproductive success among the Waorani of Ecuador.
Beckerman S, Erickson PI, Yost J, Regalado J, Jaramillo L, Sparks C, Iromenga M, Long K. Life histories, blood revenge, and reproductive success among the Waorani of Ecuador. Proc Natl Acad Sci U S A. 2009 May 19; 106(20):8134-9.