Table 1. Concentration of Salicylic Acid (SA) in the Blood of a Variety of Animals.

Results in Animals
animal	phylogenetic class	[SA] (μmol/L)	animal	phylogenetic class	[SA] (μmol/L)	animal	phylogenetic class	[SA] (μmol/L)
burrowing owl	Aves	9.854	tiger	Mammalian	0.661a	Chinese alligator	Reptilia	0.156
ne-ne	Aves	5.609	brown trout	Pisces	0.538	domestic cat	Mammalian	0.144
Indian rhinoceros	Mammalian	4.700	giraffe	Mammalian	0.507	pond heron	Aves	0.136
pygmy hippopotamus	Mammalian	2.384	donkey	Mammalian	0.473	gorilla	Mammalian	0.125
agouti	Mammalian	2.116	sacred ibis	Aves	0.353	red faced spider monkey	Mammalian	0.080
Asian elephant	Mammalian	1.635	goat	Mammalian	0.310	mouse	Mammalian	0.078
Burmese python	Reptilia	1.362	giant anteater	Mammalian	0.293	rat	Mammalian	0.069
rabbit	Mammalian	1.129	collared peccary	Reptilia	0.237	domestic cat (fed only meat)	Mammalian	0.058
piglet	Mammalian	1.010	African lion	Mammalian	0.226a	chimpanzee	Mammalian	0.033
Arabian oryx	Mammalian	0.777	cow	Mammalian	0.216	European shore crab	Crustacea	<0.005
sheep	Mammalian	0.715	Gelada baboon	Mammalian	0.210	prawn	Crustacea	<0.005

Results in Man (9, 11)
	median (μmol/L)	range (μmol/L)
vegetarians, n = 37	0.110	0.04−2.47
nonvegetarians, n = 39	0.070	0.02−2.00
southern Indian villagers, n = 21	0.763	0.05−0.64
75 mg aspirin takers, n = 14	10.03	0.23−25.40
limit of detection of the method = 0.005 μmol/L

^aMean concentration in five animals.