The generality of network properties allows the utilization of the ‘wisdom’ of biological systems surviving crisis events for many millions of years. Yeast protein-protein interaction network shows a decrease in community-overlap (an increase in community cohesion) in stress. Community rearrangement seems to be a cost-efficient, general crisis- management response of complex systems. Inter-community bridges, such as the highly dynamic ‘creative nodes’ emerge as crucial determinants helping crisis survival.
Crisis periods can be slowed down, postponed, or prevented by agents of independent and unpredictable behavior, such as stem cells (in organisms), omnivores or top predators (in ecosystems), or market gurus (in markets). Since biological networks are blueprints of organisms, which survived billions of crisis situations, this above examples highlight their great potential as role models of social behavior.