I don't think there is any one image that can do that, but here are a few:-
http://oddworlduniverse.com/togg/ind...O/RAMO0045.jpg
A Meetle grub which can become either a herbivorous or carnivorous adult depending on its first meal.
http://oddworlduniverse.com/togg/ind...O/RAMO0031.jpg
A herbivorous Meetle.
http://oddworlduniverse.com/togg/ind...O/SSMO0099.jpg
Meetle balloons. Either the herbivorous adults can turn into these, or they're a separate form of Meetle altogether.
http://oddworlduniverse.com/togg/ind...O/CAMO0021.jpg
Mugs.