¥On discovering food, forager lays chemical trail while returning to
nest
Ðonly ants who have found food deposit pheromone
¥Others stimulated to leave nest by:
Ðthe recruitor exciting nestmates (sometimes)
¥In addition to defining trail, pheromone:
Ðserves as general orientation signal for ants outside nest
Ðserves as arousal signal for ants inside