Explanation

Biological concept of species was given by Ernst Mayer. Alternative ways of defining a species [table] Biological Aspect | Definitions ; Breeding Genetic Ecological Evolutionary | A group of organisms capable of interbreeding and producing fertile offspring A group of organisms showing close similarity in genetic karyotype A group of organisms sharing the same ecological niche; no two species can share the same ecological niche A group of organisms sharing a unique collection of structural and functional characteristics [/table]