penguin.

John Ray

Binomial nomenclature. In instances in which more than Genus species is necessary to accurately name an organism, the system is sometimes dubbed "Trinomial nomenclature," or even "Quadrunomial nomenclature." However, the textbook answer is Binomial nomenclature.

Binomial nomenclature. In instances in which more than Genus species is necessary to accurately name an organism, the system is sometimes dubbed "Trinomial nomenclature," or even "Quadrunomial nomenclature." However, the textbook answer is Binomial nomenclature.

A name with three words, the third is usually the subspecies. For example, Lagopus lagopus is a species of grouse. A subspecies of this is Lagopus lagopus scoticus (the red grouse)