Equus Ferus Callabus is the scientific name for which animal?
Wild horse cranial and metacarpal differences, indicates the presence of only two subspecies in postglacial times, the tarpan and Przewalski's horse. At present, the domesticated and wild horses are considered a single species, with the valid scientific name for the horse species being "Equus ferus." The wild tarpan subspecies is "E. f. ferus", Przewalski's horse is "E. f. przewalskii", and the domesticated horse is "E. f. caballus". The rules for the scientific naming of animal species are determined in the International Code of Zoological Nomenclature, which stipulates that the oldest available valid scientific name is used to name the species. Previously, when
Streptococcus ferus as a species in 1977 Streptococcus ferus "Streptococcus ferus" is a facultatively anaerobic, gram-positive species of the "Streptococcus" genus. The species is a member of the "Viridans streptococci" group which are a large mixed-group of mostly alpha-hemolytic streptococci. The alpha-hemolytic bacteria are ones that exhibit a partial hemolysis with green coloration when grown on sheep blood agar (see image.) "S. ferus" was originally isolated from the oral cavity wild rats who were living in sugar cane fields and eating a high sucrose diet The species name "ferus", meaning wild, refers to their association with these animals. More recently the strain