Prickly pear cactus is a non-native plant introduced to southern Madagascar by the French in the 18th century. These days, the ring-tailed lemurs have become dependent upon it as a source water and food. This guy was munching away before taking a quick break to pose for a few shots.
Nikon D40x with Nikkor 18-55mm lens (at 20mm) ISO 100, f/4 at 1/50th of a second (-1/3 stop ev)