It was not unlike any night's nocturnal hallucination.
His ears perked up at the mention of Dean's nocturnal adventure.
Bats are social, nocturnal and they migrate to a warmer climate, or hibernate.
The features by which the treesnakes are distinguished are still more developed in the whip-snakes (Dryophis), whose excessively slender body has been compared to the cord of a whip. Although arboreal, like the former, they are nocturnal in their habits, having a horizontal instead of a round pupil of the eye.
They are mainly nocturnal, and subsist chiefly on bark and twigs or the roots of water plants.