The zoo's wolves are the population known as [i]Canis lupus arctos[/i] (by which I mean zoo population, as I suspect they're not necessarily the same as wild [i]C. l. arctos[/i] due to hybridisation).
The zoo\'s wolves are the population known as Canis lupus arctos (by which I mean zoo population, as I suspect they\'re not necessarily the same as wild C. l. arctos due to hybridisation).
