Size

A creature's size represents its mass and how much space it occupies. The following table lists the size modifiers, as well as some typical weights (in pounds), and typical heights (in feet). Size is more about a creature's mass than its dimensions, therefore there are examples which may fall outside these ranges.

Size1	MUS2	HP	Typical Weight	Typical Height	Example
−6	−32	1	0–0.5	0–0.25	Toad, mouse
−5	−16	5	0.5–2	0.25–0.5	Bat, gray squirrel
−4	−8	10	2–10	0.5–1	Human infant, brown rat, cottontail rabbit
−3	−4	15	10–25	1–1.75	Human toddler, falcon, house cat
−2	−2	20	25–50	1.75–3	Firna adult, lynx, beaver
−1	−1	25	50–100	3–5	Grey wolf, cheetah
0	0	30	100–250	5–7	Human adult, mastiff, wild boar
1	1	35	250–500	7–9	Gorilla, black bear, bull shark
2	2	40	500–1,000	9–11	Grizzly, tiger, bottlenose dolphin, alligator
3	4	50	1,000–2,500	11–13	Horse, bison, tiger shark
4	8	70	2,500–5,000	13–16	Hippopotamus, white rhino, great white shark
5	16	100	5,000–10,000	16–20	African elephant, stegosaurus, colossal squid
6	32	150	10,000–25,000	20–25	Tyrannosaurus rex, triceratops, orca
7	64	200	25,000–50,000	25–30	Apatosaurus louisae
8	128	275	50,000–100,000	30–40	Sperm whale, humpback whale
9	256	375	100,000–250,000	40–60	Argentinosaurus, fin whale
10	512	525	250,000–500,000	60–90	Amphicoelias fragillimus, blue whale
11	1024	750	500,000–1,000,000	90–150	Rampaging radioactive reptilian monsters

1. The Size gets subtracted from Attack Rolls and Evasion Rolls. Therefore, a positive number is a penalty and a negative number is a bonus. When creatures of different sizes engage in combat, the smaller one is harder to hit and inversely, the larger one is a bigger target.
2. The Muscle bonus is added to Might and opposed Grip. In feats of strength, larger creatures are many times stronger than smaller ones.