title: Biodiversity: A standard for species.
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Brooks
authors.forename: Kristofer M
authors.initials: KM
authors.lastname: Helgen
mesh_terms: D000818:Animals; D044822:Biodiversity; D002965:Classification / Q000379:methods*; D010641:Phenotype; D010802:Phylogeny; D020308:Songbirds / Q000145:classification; D013045:Species Specificity