diurnal animals

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• diurnal — I. adjective Etymology: Middle English, from Latin diurnalis more at journal Date: 14th century 1. a. recurring every day < diurnal tasks > b. having a daily cycle < diurnal tides > 2. a. o …   New Collegiate Dictionary

• diurnal — [[t]daɪɜ͟ː(r)n(ə)l[/t]] ADJ: usu ADJ n Diurnal means happening or active during the daytime. [FORMAL] Kangaroos are diurnal animals. Ant: nocturnal …   English dictionary

• Diurnal — ( daily ) may refer to: Diurnal cycle, any pattern that recurs daily Diurnality, the behavior of animals and plants that are active in the daytime Diurnal motion, the apparent motion of stars around the Earth Diurnal phase shift, a phase shift of …   Wikipedia

• diurnal hibernation — diurnal hibernation, hibernation that occurs at certain periods each day among some animals. Some bats spend the day in hibernation and become active at night. The diurnal hibernation of some hummingbirds takes place at night …   Useful english dictionary

• diurnal — adj. [L. diurnus, of the day] Pertaining to animals active only during the daytime; see nocturnal, crepuscular …   Dictionary of invertebrate zoology

• diurnal — di·ur·nal || daɪ ɜːnl adj. daily, of the day; of the daytime; active during the day (i.e. animals) …   English contemporary dictionary

• diurnal — adj. 1 of or during the day; not nocturnal. 2 daily; of each day. 3 Astron. occupying one day. 4 Zool. (of animals) active in the daytime. 5 Bot. (of plants) open only during the day. Derivatives: diurnally adv. Etymology: ME f. LL diurnalis f. L …   Useful english dictionary

• Blind animals — expand|date=September 2008Visual perception plays a huge role in the animal kingdom, most notably for the identification of food sources, and avoidance of prey. For this reason, blindness in animals is a unique topic of study.In general,… …   Wikipedia

• Diurnality — Ostriches are diurnal, but may be active on moonlit nights Diurnality is a plant or animal behavior characterized by activity during the day and sleeping at night. Contents 1 …   Wikipedia

• photoreception — 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 …   Universalium

• Nocturnality — Owls are well known for being nocturnal, although some owls are active during the day. Nocturnality is an animal behavior characterized by activity during the night and sleeping during the day. The common adjective is nocturnal . Nocturnal… …   Wikipedia