Fig. 3From: Snakes on a plain: biotic and abiotic factors determine venom compositional variation in a wide-ranging generalist rattlesnakea Geographic distribution of percent SVMP and linear regression by latitude (n = 130). Darker red represents higher percentages of SVMP. b Geographic distribution of percent myotoxin and linear regression (n = 130). Darker blue represents higher percentages SVMP. Notice the dramatic shift in abundance for both toxins around central Colorado (~ 39th parallel north)Back to article page