There are 2 major adaptations of Tasmanian Devils. Firstly they have developed a powerful sense of smell not only during day but also at night. These animals can locate dead animals from a distance. Tasmanian Devils can emit pungent odor in order to defend themselves from their enemies. This is second major adaptation.

Yellow is a happy, cheerful color.  A snake may signify danger.  Perhaps what it means is that there is danger ahead but you will overcome it.  This is only a guess.