Fig. 4. Homing routes in Melophorus bagoti after displacement. A and B show the routes of full- and zero-vector ants, respectively, that have been displaced 10 m from the food site. Ants reach the nest in both cases but they take different routes, and the paths of zero-vector ants tend to be more convoluted. N marks the nest, F the food site and R the release site [adapted from Narendra (Narendra, 2007b)].