nocturnality
After-dark living pattern
Nocturnality is the state or habit of being active at night.
The term applies primarily to animals—owls, bats, and raccoons exhibit nocturnality as an adaptation for hunting or avoiding predators.
It extends to human behavior patterns: His nocturnality made him useless before noon.
The opposite is diurnality, activity during daylight hours.
Nocturnal feathered predator
- batFlying mammal or sports club
- mothNight-flying lepidopteran
- fireflyBioluminescent nocturnal beetle
- opossumAmerican pouch-bearing mammal
raccoon · hedgehog · nightjar · gecko · lemur · tarsier · aye-aye · kinkajou
Circadian rhythm regulator
- circadianDaily biological cycle
- chronotypeInnate daily rhythm preference
- entrainmentRhythmic systems aligning naturally
- diurnalActive during daylight
Reflected solar radiance, nocturnal
- starlightLuminance from distant suns
- twilightLight after sunset
- duskDimming after sundown
- midnightTwelve o'clock at night
nightfall · gloaming · pitch-black · shadow · dimness · gloom · obscurity · inkiness
Seeking wild food sources
- huntingPursuing wild game
- predationHunting and consuming prey
- prowlingMoving stealthily while hunting
- roostingSettling to sleep aloft
noctambulism · nightshift · stargazing · night-blooming · pollination · navigation · migration · calling
Navigation through reflected sound
- bioluminescenceOrganism-generated light emission
- scotopicRelating to dim-light vision
- whiskersFacial sensory hairs
- camouflageConcealment through visual blending
owl
Nocturnal feathered predator
opossum · raccoon · hedgehog · nightjar · gecko · lemur · tarsier · aye-aye · kinkajou · skunk
melatonin
Circadian rhythm regulator
- circadianDaily biological cycle
- chronotypeInnate daily rhythm preference
- entrainmentRhythmic systems aligning naturally
moonlight
Reflected solar radiance, nocturnal
midnight · nightfall · gloaming · pitch-black · shadow · dimness · gloom · obscurity · inkiness · blackout
foraging
Seeking wild food sources
roosting · noctambulism · nightshift · stargazing · night-blooming · pollination · navigation · migration · calling · sleeplessness
echolocation
Navigation through reflected sound
- bioluminescenceOrganism-generated light emission
- scotopicRelating to dim-light vision
- whiskersFacial sensory hairs