Table 2. Camel calves included in the study with the number of observed hours.

Zoo	Year	Name	Date of birth	Sex	Mother	Age of calf (months)	Observed hours	No. of sucking bouts	Allo-sucking extent (%)	Allo-sucker	Mean duration ± SE of filial sucking (sec.)	Mean duration ± SE of allosucking (sec.)
Brno	2006	April	2.4.2006	F	Isis	2–5	32	75	0,00	NO	22.48±2.38
Brno	2006	Gaja	18.4.2005	F	Sulika	13–16	32	6	0,00	NO	50.50±22.41
Brno	2007	April	2.4.2006	F	Isis	14–17	24	3	100,00	YES		37.33±16.83
Brno	2007	Polednice	10.3.2007	F	Sulika	2–5	24	23	0,00	NO	33.87±6.58
Zlín-Lešná	2005	Marek	17.5.2005	M	Jade	0–3	22	34	0,00	NO	55.15±10.41
Zlín-Lešná	2005	Aštar	14.3.2005	M	Klaudie	3–6	22	24	8,33	YES	75.91±15.66	10.00±0.00
Ostrava	2006	2sameček	31.3.2006	M	Vendula	2–6	42,5	30	3,33	YES	62.90±9.03	5.00±0.00
Ostrava	2006	1samička	23.3.2006	F	Čora	2–6	42,5	55	27,27	YES	41.23±5.36	36.80±7.39
Ostrava	2007	2sameček	31.3.2006	M	Vendula	14–16	16	8	50,0	YES	41.25±15.20	58.50±24.15
Ostrava	2007	1samička	23.3.2006	F	Čora	14–16	16	11	45,45	YES	32.50±7.06	43.80±14.45
Ostrava	2007	Kobi	2.3.2007	F	Fatima	2–4	16	17	0,00	NO	46.06±10.05
Praha	2006	Vanda	18.1.2006	F	Lee	6–8	29	43	4,65	YES	37.15±4.96	17.50±5.50
Praha	2006	Víťa	21.7.2006	M	Rona	0–3	29	44	0,00	NO	54.16±6.63