title: A precarious balance.
authors.affiliation: Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA. Tyson@vt.edu
authors.forename: John J
authors.initials: JJ
authors.lastname: Tyson
mesh_terms: D001695:Biology / Q000639:trends*; D002468:Cell Physiological Phenomena; D019295:Computational Biology; D008962:Models, Theoretical