The SEAcross ABM has been developed as a tool to examine the crossing success of various mammals with respect to sea straits differing with respect to width as well as current speed and direction. The agents can be configured according to the requirements of different species. The agents, individuals representing the same species of terrestrial mammals, differ in body mass, head-body length, group size required and hydrophobia score. Body mass and head body length determine swimming speed and range. Group size represents a population variable and the hydrophobia score has an impact on the likelihood by which a species enters the water. We applied the SEAcross model in different contexts. We carried out a set of experiments to examine the dispersal range of stegodons across Wallacea. For this purpose, we linked SEAcross with a shrinking model and tested a range of size classes. Focusing on particular dispersal routes permits one to determine whether crossing success in a particular season is higher or lower, depending on seasonally shifting features of sea straits. In another set of experiments we focused on characteristic island faunas, for instance in Sulawesi, and examined whether all of the species concerned arrived at the same time and whether they managed to take the same route or not. These experiments were carried out by students in frame of a class on paleobiogeography. The SEAcross ABM is a good example for the application of agent-based modeling contexts for research and teaching. In this presentation we intend to show its performance and applicability.