title: Ant navigation: reading geometrical signposts.
abstract: Ants often travel along complex pheromone trail systems between their nest and foraging areas. A new and surprising discovery is that Pharaoh's ants can work out from the geometry of individual branch points on the trail whether they are heading towards or away from the nest.
authors.affiliation: Department of Biology and Environmental Science, University of Sussex, Brighton BN1 9QG, UK. T.S.Collett@sussex.ac.uk
authors.forename: Thomas S
authors.initials: TS
authors.lastname: Collett
authors.forename: David
authors.initials: D
authors.lastname: Waxman
mesh_terms: D000818:Animals; D001000:Ants / Q000502:physiology*; D003463:Cues; D005247:Feeding Behavior / Q000502:physiology; D008124:Locomotion / Q000502:physiology*; D009949:Orientation / Q000502:physiology*; D010675:Pheromones / Q000502:physiology; D013037:Spatial Behavior / Q000502:physiology*
chemical_list: D010675:Pheromones