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  2. Diurnality - Wikipedia

    en.wikipedia.org/wiki/Diurnality

    Steppe eagles are diurnal, and hunt during the day. Humans are diurnal, and organize their work and business mainly in the day. [a] Diurnality is a form of plant and animal behavior characterized by activity during daytime, with a period of sleeping or other inactivity at night. The common adjective used for daytime activity is "diurnal". The ...

  3. Crepuscular animal - Wikipedia

    en.wikipedia.org/wiki/Crepuscular_animal

    Its sense accordingly differs from diurnal and nocturnal behavior, which respectively peak during hours of daytime and night. The distinction is not absolute, because crepuscular animals may also be active on a bright moonlit night or on a dull day. Some animals casually described as nocturnal are in fact crepuscular. [2]

  4. List of nocturnal animals - Wikipedia

    en.wikipedia.org/wiki/List_of_nocturnal_animals

    Crepuscular, a classification of animals that are active primarily during twilight, making them similar to nocturnal animals. Diurnality, plant or animal behavior characterized by activity during the day and sleeping at night. Cathemeral, a classification of organisms with sporadic and random intervals of activity during the day or night.

  5. Nocturnality - Wikipedia

    en.wikipedia.org/wiki/Nocturnality

    The kiwi is a family of nocturnal birds endemic to New Zealand.. While it is difficult to say which came first, nocturnality or diurnality, a hypothesis in evolutionary biology, the nocturnal bottleneck theory, postulates that in the Mesozoic, many ancestors of modern-day mammals evolved nocturnal characteristics in order to avoid contact with the numerous diurnal predators. [3]

  6. Cathemerality - Wikipedia

    en.wikipedia.org/wiki/Cathemerality

    Nocturnal luminosity has been found to positively correlate with the amount of nocturnal activity and negatively correlate with diurnal activity. In other words, an animal's activity distribution may be somewhat dependent on the presence of the lunar disc and the fraction of illuminated moon in relation to sunset and sunrise times. [7]

  7. Golden spiny mouse - Wikipedia

    en.wikipedia.org/wiki/Golden_Spiny_Mouse

    It is omnivorous and feeds on seeds, desert plants, snails, and insects. Living in desert regions, it is a xeric animal that obtains water from the plants that it eats and produces very concentrated urine in order to conserve water. [2] A. russatus is naturally nocturnal, but adapts to being diurnal when it shares a habitat with A. cahirinus.

  8. Duiker - Wikipedia

    en.wikipedia.org/wiki/Duiker

    Before intervention, the system of specialized resources in which larger duikers exploit a particular type of food and smaller duikers on another, is functional as modeled in the diurnal and nocturnal nature of the duikers; this allows the niche to be shared by others without distinct interspecific competition. Similarly, they decrease ...

  9. Amazonian manatee - Wikipedia

    en.wikipedia.org/wiki/Amazonian_manatee

    They are found in flooded forests and meadows during the flood season, when food is abundant. [7] The Amazonian manatee has the smallest degree of rostral deflection (25° to 41°) among sirenians, an adaptation to feed closer to the water surface. [18] It is both nocturnal and diurnal and lives its life almost entirely underwater. [19]