TABLE 1.

General features of experimental animals ⁶ , ⁷ , ⁸ , ⁹ , ¹⁰ , ¹¹

Species	Average body length (cm)	Average body weight (kg)	Average age (year)	Pregnancy length (day)	Offspring per litter	Heart as % of body weight	Brain as % of body weight
Homo sapiens	170	40–100	72	280	1–2	0.5	2.1
Mus musculus	8–10	0.03–0.05	1–2	18–21	3–12	0.5	1.42
Rattus norvegicus	17	0.2–0.6	1–2	20–23	6–12	0.38	0.29
Oryctolagus cuniculus	48	3.5–7.5	5–12	23–34	3–9	0.3	0.4
Sus scrofa	125	40–120	20	114	10	0.6	0.5
Ovis aries	90	80–100	10–15	142–155	1–2	0.27	0.12
Bos taurus	220	500–900	20–23	270	1	0.03	0.08
Canis familiaris	75	10–25	12–15	58–67	5–6	0.85	0.59
Rhesus monkey	50	8–10	20	150	1–2	0.36	0.9