Crepuscular+light
21literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… …
22photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …
23Circadian rhythm — Circadian redirects here. For the album by the rock band 5th Projekt, see Circadian (album). Some features of the human circadian biological clock A circadian rhythm, popularly referred to as body clock, is an endogenously driven, roughly 24 hour …
24Optical phenomenon — An optical phenomenon is any observable event that results from the interaction of light and matter. See also list of optical topics and optics. A mirage is an example of an optical phenomenon. Common optical phenomena are often due to the… …
25Firefly — For other uses, see Firefly (disambiguation). Firefly Photuris lucicrescens[1] Scientific classification …
26dark — I (Roget s IV) modif. 1. [Lacking brightness] Syn. unlighted, unlit, dim, dusky, murky, gloomy, shadowy, somber, cloudy, foggy, sunless, lightless, indistinct, dull, faint, vague, misty, darkish, deep, drab, dingy, obscure, nebulous, shady,… …
27Ice — This article is about water ice. For the broader concept of ices as used in the planetary sciences, see volatiles. For other uses, see Ice (disambiguation) …
28Mantis shrimp — Scientific classification Kingdom: Animalia Phylum …
29Twilight — For other uses, see Twilight (disambiguation). Twilight at Riga Bridge …
30Fog — For other uses, see Fog (disambiguation). Part of the Nature series on Weather   Calendar seasons Spring  …
