@article{exploringtheevolutionofatradeoff,
  title = {Exploring the evolution of a trade-off between vigilance and foraging in group-living organisms},
  author = {Randal S. Olson and Patrick B. Haley and Fred C. Dyer and Christoph Adami},
  year = {2014},
  eprint = {1408.1906},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1408.1906v1},
}