That wording isn't very good. change the colour of what? If your talking about Blue Tongue Lizards, they connot change colour but it may change slightly as they get older. (like any animals would)
depends, is its blue then its tongue is orange but if its orange its tongue is blue :]
depends, is its blue then its tongue is orange but if its orange its tongue is blue :]
blue
a giraffe's tongue is purple and sometimes blue
Blue
The change in a dog's tongue could be due to being dehydrated. Another reason for the tongue color to change could be an oral health issue.
blue like the blue puffle
blue black
Blue-Black
ALL lizards, regardless of tongue color, are reptiles.
There are blue artificial colors in them.
It's probably because of the food dye in the actual food eg: blue lollypops: they have blue food coloring in them so it'll dye your tongue. Like a stain on a shirt!