No, the word 'nocturnal' is an adjective, a word that describes a noun: a nocturnal creature, a nocturnal scene.
Beavers are nocturnal and diurnal (awake during the day, or "non nocturnal", which is not the proper way to say it). Primarily, nocturnal though.
nocturnal
no, they are not nocturnal
Nocturnal
yes they are nocturnal
Nocturnal.
no a zebra is not nocturnal
no horse are not nocturnal
nocturnal
Was Chimera nocturnal
nocturnal