Species (taxinomia)
Species  in biologia est pars prima atque praecipua naturae vivae. Duo animalia quae ad eandem speciem pertinent, cum pullos habeant, hi vicissim pullos parĕre possunt.

Speciei nomen scientificum est binomen: nominibus generis specieique constat, et litteris obliquis scribendum est. Ergo speciei nostrae nomen est Homo sapiens, nomen tyrannnosauri Tyrannosaurus rex, et caetera. Hoc est, species partes sunt generum, quae partes sunt familiarum, et caetera. Exempli gratia, nomen felis domestici est Felis silvestris:
 regnum Animalia
 phylum Chordata
 classis Mammalia
 ordo Carnivora
 familia Felidae
 genus Felis
 species silvestris

Cladus
Distributio geographica
Holotypus
Species introducta
Species periclitatae
Specismus
Status conservationis
Subspecies
Systema taxinomicum Linnaeanum
Systematica
Taxinomia
Typus

Nexus externi
 International Code of Nomenclature for algae, fungi, and plants (2018)
 International Code of Zoological Nomenclature (1999/2012)
 "Species" apud  (Stanford Encyclopedia of Philosophy)
 "Barcoding of species."
 "European Species Names in Linnaean, Czech, English, German and French,"
 Catalogus Vitae,
 Species.
Speciatio,
Commentarii interretiales
"Other Species Concepts." (U. C. Berkeley) 
"Gone", Mother Jones, Maio/Iunio 2007, 
"Working On The 'Porsche Of Its Time': New Model For Species Determination Offered," 31 Decembris 2003. 
"Cross-Species Mating May Be Evolutionarily Important and Lead to Rapid Change," 8 Augusti 2003. 
"Mayo Researchers Observe Genetic Fusion of Human, Animal Cells; May Help Explain Origin of AIDS," 9 Ianuarii 2004. 
"Scientists Unravel Ancient Evolutionary History of Photosynthesis," 18 Septembris. 

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