Animals often swarm and form communities to survive in harsh and complex environments. Toward improving the vulnerability of engineering systems against power-source limitations, we focused on food-sharing community of vampire bats (Desmodus rotundus). Although vampire bats die within 3 days if they fail to acquire any food, they can survive over 10 years by forming a highly sophisticated community wherein they share food with each other. In this study, we developed a simple mathematical model for the community formation process and demonstrated its validity via simulation.
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