Table 1.

Descriptive statistics associated with Waorani raiding dyads (n = 1041) and raiders (n = 81).

variable	yes	no	n	mean (s.d.)	min	max	median
from same territory	736	305	1041	—	—	—	—
from same patriline	202	839	1041	—	—	—	—
from same matriline	184	857	1041	—	—	—	—
from neither lineage	778	263	1041
coefficient of relatedness	—	—	1041	0.09 (0.15)	0	0.6875	0
absolute age difference	—	—	1041	13 (11)	0	56	11
no. of times dyad raided together	—	—	1041	2 (1)	1	12	1
age at first raid	—	—	81	18 (7)	6	36	17
raiding window (years)	—	—	81	31 (12)	11	67	28
no. of times ego raided	—	—	81	4 (3)	1	13	3
raiding network size	—	—	81	27 (15)	2	59	28
raiding network size: non-lineal members	—	—	81	18 (11)	2	50	18
ego married raid partner's female kin	58	23	81	—	—	—	—
no. of raid partners with whom ego arranged offspring marriages	—	—	81	1 (1)	0	5	1
ego's no. of offspring	—	—	81	8 (6)	0	28	8