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Encyclopedia > Tail
A scorpion tail
A scorpion tail

The tail is the section at the rear end of an animal's body; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammals and birds. While tails are primarily a feature of vertebrates, some invertebrates—including scorpions and springtails—have tail-like appendages. Image File history File links Download high-resolution version (800x702, 148 KB) Photographer: LA Dawson File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Download high-resolution version (800x702, 148 KB) Photographer: LA Dawson File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Animalia redirects here. ... With regard to living things, a body is the integral physical material of an individual. ... An appendage is, in general, an external body part that projects from the body, or a natural prolongation or projection from a part of any organism. ... The human torso Torso is an anatomical term for the greater part of the human body without the head and limbs. ... For the record label, see Sacrum Torch The sacrum is a large, triangular bone at the base of the spine and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones. ... The coccyx is formed of up to five vertebrae. ... Subclasses Subclass Allotheria* Order Docodonta (extinct) Order Multituberculata (extinct) Order Palaeoryctoides (extinct) Order Triconodonta (extinct) Order Volaticotheria (extinct) Subclass Prototheria Order Monotremata Subclass Theria Infraclass Trituberculata (extinct) Infraclass Metatheria Infraclass Eutheria Mammals are a class of vertebrate animals characterized by the production of milk in females for the nourishment of... “Aves” redirects here. ... Classes and Clades See below Male and female Superb Fairy-wren Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns. ... Invertebrate is a term that describes any animal without a spinal column. ... A scorpion is an invertebrate animal with eight legs belonging to the order Scorpiones in the class Arachnida. ... Families [1] Suborder Arthropleona Superfamily Entomobryoidea Entomobryidae Isotomidae Oncopoduridae Paronellidae Tomoceridae Superfamily Poduroidea Brachystomellidae Hypogastruridae Neanuridae Odontellidae Onychiuridae Poduridae Suborder Symphypleona Dicyrtomidae Katiannidae Sminthuridae Sminthurididae Bourletiellidae Arrhopalitidae Springtails (Order Collembola) form the largest of the three orders of modern hexapods that are no longer considered to be insects (along with...


Animal tails are used in a variety of ways. They provide a source of locomotion for fish and some other forms of marine life. Many land animals use their tails to brush away flies and other biting insects. Some species, including cats and kangaroos, use their tails for balance, and some, such as New World monkeys and opossums, use their prehensile tails to grasp tree branches. In a general sense, locomotion simply means active movement or travel, applying not just to biological individuals. ... A giant grouper at the Georgia Aquarium Fish are aquatic vertebrates that are typically cold-blooded; covered with scales, and equipped with two sets of paired fins and several unpaired fins. ... Marine biology is the study of animal and plant life within saltwater ecosystems. ... Suborders Nematocera (includes Eudiptera) Brachycera Wikispecies has information related to: Diptera True flies are insects of the Order Diptera (Greek: di = two, and pteron = wing), possessing a single pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax. ... Binomial name Felis catus Linnaeus, 1758 Synonyms Felis lybica invalid junior synonym The cat (or domestic cat, house cat) is a small carnivorous mammal. ... Species Macropus rufus Macropus giganteus Macropus fuliginosus Macropus antilopinus A kangaroo is a marsupial from the family Macropodidae. ... For other meanings of the word balance, see: propaganda equilibrium (disambiguation page) sense of balance weighing scale analytical balance (a precise weighing scale) balance beam in gymnastics Balance (song) homeostasis, the biological balance within a human or other animals body When the weights on the plates of this balance... Approximate worldwide distribution of monkeys. ... This article or section should be merged with Virginia_opossum The word opossum (usually pronounced without the leading O, or with only a very slight schwa) refers either to the Virginia Opossum in particular, or more generally to any of the other marsupials of magnorder Ameridelphia. ... A prehensile tail is the tail of an animal that has adapted to be able to grasp and/or hold objects. ...

Peacock in full courtship display
Peacock in full courtship display

Tails are also used for social signaling. Some deer species flash the white underside of their tails to warn other nearby deer of possible danger, and canids (including domestic dogs) indicate emotions through the positioning of their tails. Evolutionary pressures have led to the development of armored tails in some species, and some, such as the tails of scorpions contain venom. Image File history File links Download high-resolution version (2560x1920, 2000 KB) En: Peacock (Pavo cristatus), displaying male. ... Image File history File links Download high-resolution version (2560x1920, 2000 KB) En: Peacock (Pavo cristatus), displaying male. ... Peacock re-directs here; for alternate uses see Peacock (disambiguation). ... “Fawn” redirects here. ... Genera Alopex Atelocynus Canis Cerdocyon Chrysocyon Cuon Dusicyon Fennecus Lycalopex Lycaon Nyctereutes Otocyon Pseudalopex Speothos Urocyon Vulpes Canidae is the family of carnivorous and omnivorous mammals commonly known as canines. ... Trinomial name Canis lupus familiaris The dog (Canis lupus familiaris) is a domestic subspecies of the wolf, a mammal of the Canidae family of the order Carnivora. ... For other uses, see Emotion (disambiguation). ... This article is about evolution in biology. ... A scorpion is an invertebrate animal with eight legs belonging to the order Scorpiones in the class Arachnida. ... It has been suggested that Snake poison be merged into this article or section. ...

Some species of lizard can permanently detach ("cast") their tails from their bodies. This can help them to escape from predators, which are either distracted by the wriggling detached tail, or left with only the tail while the rest of the lizard flees. Tails cast in this manner generally grow back over time, though the replacement is typically darker in color than the original. Families Many, see text. ... Autotomy (from the Greek auto = self- and tomy = severing) or self amputation is the act whereby an animal severs one of its own appendages, usually as a self-defense mechanism designed to elude a predators grasp. ... This snapping turtle is trying to make a meal of a Canada goose, but the goose is too wary. ...

The tails of most birds end in long feathers called rectrices. These feathers are used as a rudder, helping the bird to steer and maneuver in flight; they also help the bird to balance while it is perched. In some species—such as birds of paradise, lyrebirds and peacocks—modified tail feathers play an important role in courtship displays. The extra-stiff tail feathers of other species, including woodpeckers and woodcreepers, allow them to brace themselves firmly against tree trunks. Two feathers Feathers are one of the epidermal growths that form the distinctive outer covering, or plumage, on birds. ... Flight is the main mode of locomotion used by most of the worlds bird species. ... For the flowering plant of this name, see Strelitzia Genera Cicinnurus Diphyllodes Epimachus Lophorina Manucodia Paradisaea Parotia Ptiloris Seleucidis Lesser Bird of Paradise Paradisaea minor (c)Roderick Eime The birds of paradise are members of the family Paradisaeidae of the order Passeriformes, found in Oceania. ... Genera Menura A Lyrebird is either of two large ground-dwelling Australian birds, most notable for their extraordinary ability to mimic natural and artificial sounds from their environment. ... Peacock re-directs here; for alternate uses see Peacock (disambiguation). ... This article or section does not adequately cite its references or sources. ... Genera Melanerpes Sphyrapicus Xiphidiopicus Dendropicos Dendrocopos Picoides Veniliornis Campethera Geocolaptes Dinopium Meiglyptes Hemicircus Micropternus Picus Mulleripicus Dryocopus Celeus Piculus Colaptes Campephilus Chrysocolaptes Reinwardtipicus Blythipicus Gecinulus Sapheopipo For other uses, see Woodpecker (disambiguation). ... Genera Dendrocincla Sittasomus Glyphorynchus Drymornis Nasica Dendrexetastes Hylexetastes Xiphocolaptes Dendrocolaptes Xiphorhynchus Lepidocolaptes Campylorhamphus The woodcreepers are a family of passerine bird species endemic to the neotropics. ...

Human tails

Human embryos have a tail that measures about one-sixth of the size of the embryo itself. As the embryo develops into a fetus, the tail is absorbed by the growing body. The developmental tail is thus a human vestigial structure (an atavism). Infrequently, a child is born with a "soft tail", which contains no vertebrae, but only blood vessels, muscles, and nerves, although there have been a very few documented cases of tails containing cartilage or up to five vertebrae. Modern procedures allow doctors to eliminate the tail at delivery. The longest human tail on record belonged to a twelve-year-old boy living in what was then French Indochina, which measured nine inches (229 mm).[1] A sound case is that of a man named Chandre Oram who was born in India and has been famous because of his 13-inch tail. Nonetheless, it is believed it is not a true tail but a case of spina bifida. It has been suggested that embryology be merged into this article or section. ... Human fetus at eight weeks. ... A vestigial organ is an organ whose original function has been lost during evolution. ... An atavism can mean an organism that is a real or supposed evolutionary throwback; the unexpected appearance of primitive traits; or a reversion to or reappearance of a trait that had been present in a lineage in the past, but which had been absent in intervening generations. ... French Indochina (French: LIndochine française, Vietnamese: Đông Dương thuộc Pháp) was the part of the French colonial empire in Indochina in southeast Asia, consisting of a federation of protectorates (Tonkin and Annam, which now form Vietnam, as well as Cambodia and Laos) and one directly... Chandre Oram is an Indian tea estate worker who lives in Alipurduar of Jalpaiguri, West Bengal. ...

Humans have a tail bone (the coccyx) attached to the pelvis, in the same place which other mammals have tails. The tail bone is formed of fused vertebrae, usually four, at the bottom of the vertebral column. It doesn't protrude externally, but retains an anatomical purpose: providing an attachment for muscles like the gluteus maximus. The coccyx, commonly referred to as the tailbone, is the final segment of the human vertebral column, of three to five (usually four) fused vertebrae (the coccygeal vertebrae), below the sacrum. ... The coccyx is formed of up to five vertebrae. ... A diagram of a thoracic vertebra. ... The vertebral column seen from the side Different regions (curvatures) of the vertebral column The vertebral column (backbone or spine) is a column of vertebrae situated in the dorsal aspect of the abdomen. ... The gluteus maximus is the largest of the gluteus muscles which are located in the buttock. ...


  1. ^ Humans Evolved from Ape-like Ancestors.
  • (2001) in Chris Elphick, John B. Dunning, Jr. and David Sibley: The Sibley Guide to Bird Life & Behaviour. London: Christopher Helm. ISBN 0-7136-6250-6. 

  Results from FactBites:
tail (859 words)
Tails relative to the end of the file may be saved in an internal buffer, and thus may be limited in length.
The tail utility supports the XBD specification, Utility Syntax Guidelines, except that the obsolescent version accepts multi-character options that can preceded by a plus sign.
Although the input file to tail can be any type, the results might not be what would be expected on some character special device files or on file types not described by the XSH specification.
  More results at FactBites »



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