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Many animals that are casually described as nocturnal are in fact crepuscular.

Crepuscular is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Crepuscular books and related discussion.

Suggested Pdf Resources

Brochure - crepuscular cats
as creatures of the night, their behavior is not truly nocturnal. Cats are crepuscular, which means that their activity levels naturally peak at both dawn and dusk.
Epipolar Sampling for Shadows and Crepuscular Rays in
volumetric lighting effects known as crepuscular or god rays.
Night and crepuscular mosquitoes and risk of vector-borne diseases
A study of crepuscular and night-biting mosquitoes was conducted at remote settlements along the Padauiri.
Crepuscular and Nocturnal Activity Patterns of Black Bears in the
thar thc) cxhibired crepuscular actilit,v paltens rcgardless of sex- season. or siud) rrea.

Suggested News Resources

VIDEO — Crepuscular Rays over Hood Canal
THE SUN AND CLOUDS put on a spectacular display of crepuscular rays as the sun set over Hood Canal on Aug. 12. They were caught by Dr.
Bird sightings
For the best chance of seeing these crepuscular migrants, keep an eye on the northern horizon from late afternoon until dusk, especially on calm evenings or evenings with light northwesterly winds.
Amazing rolling cloud and crepuscular rays filmed over Silverdale
By Scott Sistek Dr. Dale Ireland's fantastic web camera stationed at his Silverdale home has really captured some amazing sights over the past few days. On Sunday, an unusual wave-like feature rolled through the overcast.
Concern for social justice
Montpellier pick proves belle chance
It all looked wonderful in the crepuscular light but we were on a mission to find somewhere to eat so 'mange tout Rodney' became the cry.

Suggested Web Resources

Crepuscular - Wikipedia, the free encyclopedia
Crepuscular animals are those that are active primarily during twilight, that is during dawn and dusk.
Crepuscular rays - Wikipedia, the free encyclopedia
Crepuscular - Definition and More from the Free Merriam-Webster
of, relating to, or resembling twilight : dim <crepuscular light>. 2.
Crepuscular | Define Crepuscular at
Crepuscular definition at, a free online dictionary with pronunciation, synonyms and translation. Look it up now!
crepuscular - definition of crepuscular by the Free Online Dictionary
cre·pus·cu·lar (kr -p s ky -l r). adj. 1.

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