title: Microbial evolution: stalking the wild bacterial species.
abstract: A recent report suggests that, when habitats are disturbed, bacterial populations that would be considered to be separate species can merge, reversing the process of speciation. But, for bacteria, 'species' remains undefined and undefinable.
authors.affiliation: Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 1X5. ford@dal.ca
authors.forename: W Ford
authors.initials: WF
authors.lastname: Doolittle
mesh_terms: D000818:Animals; D005075:Biological Evolution; D017000:Campylobacter coli / Q000235:genetics*; D016123:Campylobacter jejuni / Q000235:genetics*; D006801:Humans; D013045:Species Specificity; D009626:Terminology as Topic