article: Biological classification
links: Tree of life (biology) Diagnosis Homo sapiens Charles Darwin Analogy (biology) Ancestor DNA Phylogeny Italic Bat Animal Clade Taxonomy Aristotle Plant Binomial nomenclature Latin Bird Fungus Evolutionary grade Genus Systematics Molecular clock Homology Cladistics Biological Taxon Carolus Linnaeus Molecular evolution Fungi Alga Zoologist Wastebasket taxon