crepuscular

adj.

黄昏的；黎明的；昏暗的；模糊的

1. Bats are crepuscular creatures.
   蝙蝠是在黎明或黄昏时分活动的动物。

Crepuscular and nocturnal illumination and its effects on color perception by the nocturnal hawkmoth Deilephila elpenor
The Adaptation of Flowering Plants to Nocturnal and Crepuscular Pollinators
Light intensity limits foraging activity in nocturnal and crepuscular bees
Synchronous Crepuscular Flight of Female Asian Gypsy Moths: Relationships of Light Intensity and Ambient and Body Temperatures
Twilight orientation to polarised light in the crepuscular dung beetle Scarabaeus zambesianus
CREPUSCULAR AND NOCTURNAL ACTIVITIES OF CALIFORNIAN NEARSHORE FISHES, WITH CONSIDERATION OF THEIR SCOTOPIC VISUAL PIGMENTS AND THE P...
Is the Use of Underwater Polarized Light by Fish Restricted to Crepuscular Time Periods?
An acoustic tracking of a megamouth shark, Megachasma pelagios: a crepuscular vertical migrator
Night and crepuscular mosquitoes and risk of vector-borne diseases in areas of piassaba extraction in the middle Negro River basin, ...
Behavioural modulation of predation risk: moonlight avoidance and crepuscular compensation in a nocturnal desert rodent, Dipodomys m...