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Encyclopedia > Diurnal animal

A diurnal animal (dī-ŭr'nəl) is an animal that is active during the daytime and sleeps during the night. Animals that are not diurnal are either nocturnal (active at night) or crepuscular (active primarily during twilight). Many animal species are diurnal, including many mammals and birds, and humans Some mainly nocturnal or crepuscular animals have been domesticated as pets and have changed into diurnal animals to coincide with the cycle of human life. Examples are pet dogs and cats, which are derived from the wolf and the wild cat. However these animals may revert to their original behaviour when they are born feral. Phyla Subregnum Parazoa Porifera Subregnum Eumetazoa Placozoa Orthonectida Rhombozoa Radiata (unranked) Ctenophora Cnidaria Bilateria (unranked) Acoelomorpha Myxozoa Superphylum Deuterostomia Chordata Hemichordata Echinodermata Chaetognatha Superphylum Ecdysozoa Kinorhyncha Loricifera Priapulida Nematoda Nematomorpha Onychophora Tardigrada Arthropoda Superphylum Platyzoa Platyhelminthes Gastrotricha Rotifera Acanthocephala Gnathostomulida Micrognathozoa Cycliophora Superphylum Lophotrochozoa Sipuncula Nemertea Phoronida Bryozoa Entoprocta Brachiopoda... Water, Rabbit, and Deer: three of the 20 day symbols in the Aztec calendar, from the Aztec Sun Stone. ... Sleep is the state of natural rest observed in most mammals, birds, fish, as well as invertebrates such as the fruitfly Drosophila. ... Melbourne skyline at night Night or night-time is the period in which the sun is below the horizon. ... A bat illustrating nocturnal features. ... This article or section does not cite its references or sources. ... It has been suggested that this article or section be merged with Dawn. ... Orders Subclass Monotremata Monotremata Subclass Marsupialia Didelphimorphia Paucituberculata Microbiotheria Dasyuromorphia Peramelemorphia Notoryctemorphia Diprotodontia Subclass Placentalia Xenarthra Dermoptera Desmostylia Scandentia Primates Rodentia Lagomorpha Insectivora Chiroptera Pholidota Carnivora Perissodactyla Artiodactyla Cetacea Afrosoricida Macroscelidea Tubulidentata Hyracoidea Proboscidea Sirenia The mammals are the class of vertebrate animals primarily characterized by the presence of mammary... For other meanings of bird, see bird (disambiguation). ... Human beings are defined variously in biological, spiritual, and cultural terms, or in combinations thereof. ... The term Dogs, when used by itself can refer to: The plural of dog Dogs, a song by Pink Floyd This is a disambiguation page — a list of articles associated with the same title. ... CATS The Musical is a musical composed by Andrew Lloyd Webber (ALW) in 1981 based on Old Possums Book of Practical Cats by T. S. Eliot. ... Wolf Wolf Man Mount Wolf Wolf Prizes Wolf Spider Wolf 424 Wolf 359 Wolf Point Wolf-herring Frank Wolf Friedrich Wolf Friedrich August Wolf Hugo Wolf Johannes Wolf Julius Wolf Max Franz Joseph Cornelius Wolf Maximilian Wolf Rudolf Wolf Thomas Wolf As Name Wolf Breidenbach Wolf Hirshorn Other The call... Binomial name Felis silvestris Schreber, 1775 subspecies See text The wild cat (Felis silvestris), sometimes wildcat or wild-cat especially when distinguishing from other wild species of felines, is a small predator native to Europe, the western part of Asia, and Africa. ... A feral horse (an American mustang) in Wyoming A feral animal or plant is one that has escaped from domestication and returned, partly or wholly, to its wild state. ...

 This ecology-related article is a stub. You can help Wikipedia by expanding it.

List of such animals goes here: Image File history File links File links The following pages link to this file: Ecological succession ... Ernst Haeckel coined the term oekologie in 1866. ...



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