Gibberlings require a prodigious amount of food to support their manic nocturnal existence, stripping to the bone anyone or anything that should fall in their path.

Surindar's ancestors had been forced to live a nocturnal existence, like bats and owls.

He describes a solitary, nocturnal existence.

And similarly, from his nocturnal existence he was moving, little by little, to a diurnal one.

I am beginning to feel this nocturnal existence tell on me.

McPherson described E. tribuloides as a "sluggish echinoid" that leads a nocturnal, benthic existence.

Natalia and Anton adopted a nocturnal existence to protect Natalia from the damaging rays of the sun, while continuing to use the expensive medical equipment to treat her skin sensitivity.

Due to their nocturnal, forested existence, they were poorly known within their range as well.

I wondered, stealing a glance at him, how he had accustomed himself to this nocturnal, underground existence, the life of a scholar, after a lifetime of battle and action.

Mastronardi led a notoriously nocturnal existence.