Table 1. List of participants sorted by matrilines and their choices during the experiment (number of leaf-sponging event, number of moss-sponging event, total number of sponging events, proportion of leaf-sponging, and proportion of moss-sponging). F, female; M, male.

ID (N = 40)	Age (years)	Sex	Matriline	No. of leaf-sponging	No. of moss-sponging	Total	Percentage of leaf-sponging	Percentage of moss-sponging
AN	24.3	F	AN*	4	0	4	100	0
CC	14.3	F	CC*	3	0	3	100	0
GL	38.3	F	G	4	0	4	100	0
GR	8.3	F	G	8	0	8	100	0
HR	5.0	F	H	3	4	7	43	57
HT	36.5	F	H	1	4	5	20	80
HW	21.3	M	H	0	1	1	0	100
HY	9.1	F	H	7	5	12	58	42
IN	15.3	F	IN*	2	1	3	67	33
JS†	8.4	M	J	0	1	1	0	100
KG	38.5	F	K1	2	0	2	100	0
KI	11.2	F	K1	0	3	3	0	100
KP	6.1	F	K1	2	0	2	100	0
KC	8.2	M	K2	2	0	2	100	0
KL	35.5	F	K2	3	0	3	100	0
KH	6.3	F	K3	3	2	5	60	40
KS	12.2	M	K3	1	1	2	50	50
KU	35.4	F	K3	0	1	1	0	100
KB†	7.8	F	K4	1	2	3	33	67
KR†	13.0	F	K4	0	4	4	0	100
KW†	33.4	F	K4	0	1	1	0	100
KZ	19.8	M	K4	1	0	1	100	0
KA	15.8	F	KA*	1	0	1	100	0
MB	5.9	M	M1	1	0	1	100	0
ML	39.5	F	M1	1	0	1	100	0
MI	7.0	F	M2	4	1	5	80	20
MK	34.4	F	M2	3	2	5	60	40
MS	23.3	M	N	3	0	3	100	0
NB†	52.3	F	N	3	1	4	75	25
NT	11.6	F	N	6	0	6	100	0
OK	18.5	F	OK*	2	0	2	100	0
PS	16.3	M	PS*	6	1	7	86	14
RF	7.3	F	R	1	1	2	50	50
RH	49.5	F	R	0	4	4	0	100
RM	12.1	F	R	2	0	2	100	0
RS	17.0	F	R	2	1	3	67	33
TM	10.5	F	TM*	1	1	2	50	50
UP	15.3	F	UP*	11	6	17	65	35
ZD	13.4	M	Z	1	0	1	100	0
ZG	17.4	M	ZG*	1	0	1	100	0
Median				2	1	3	78	22.5
Total				96	48	144

*Individuals without a known mother (they were assigned their own matriline).

†Initial moss-spongers in the study of Hobaiter et al. (2).