Example models

AgentAgent interactionEnvironment interactionSwarm application
MoleculesReaction between `molecules'None [Random walk?]SCL World
CellsMechanical pressure between cellsDiffusion, uptake from substrate mediumBacSim
low (bacsim-low.gif)
medium (bacsim-medium.gif)
high (bacsim-high.gif) 
concentrations 
OrganismsHeat dissipation by treesSeed dispersal, lightning strikesArborscapes
Social groupsTradeClimate, maize potential of areaVillage