Table 1 LAB colour measurements (L, a, b) of background pictures used in experiments (except for natural dark backgrounds that were just used for colour reference) to test whether O. machadoi and B. martinsi tadpoles respond to background colour in the absence of predator cues and after an aversive stimulus. *Manipulated backgrounds.

From: Tadpoles respond to background colour under threat

LAB channel

Background colours

Yellow

Blue*

Dark*

Dark

L

165.7 ± 36.1

131.5 ± 30.1

41.9 ± 32.4

37.4 ± 18.6

a

137.4 ± 4.6

130.8 ± 5.1

132.5 ± 3.5

132.0 ± 3.3

b

168.8 ± 9.9

87.3 ± 10.4

169.5 ± 10.5

140.9 ± 9.0