The cavehopper is a creature that resembles a grasshopper with a distinct albino appearance. It can be found in the cool caves of the Fire Nation, as it is intolerant to sunlight and spends most of its life inside dimly-lit caverns where it can eat algae and other vegetation. Cavehoppers are among the favorite snacks of the toucan puffins.
While staying in a beach cave, Team Avatar discussed the possibility of getting disguises; Toph reasoned that they could use the new clothing to blend in and get real food. To emphasize her point, she hit the wall, causing a group of cavehoppers to jump out and flee. One of the creatures was caught by Momo and promptly eaten, though the winged lemur subsequently spat out a half eaten limb.
Cavehoppers are white and have long antennae protruding from their heads, along with two short front legs and two larger hind legs. They possess four semi-webbed feet in all, each of which are topped by toe-pads.
Cavehoppers seem to be based on cave crickets, with the difference being that real-life crickets have six legs. Grasshoppers are herbivorous insects whose large hind legs are adapted for leaping, and they are generally brown in color, though young crickets sometimes appear translucent.