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Common Degu
The common degu (''Octodon degus''; ), or, historically, the degu, is a small hystricomorpha rodent endemic to the Chilean matorral ecoregion of central Chile. The name ''degu'' on its own indicates either the entire genus '' Octodon'' or, more commonly, just the common degu. Common degus belong to the parvorder Caviomorpha of the infraorder Hystricognathi, along with the chinchilla and guinea pig. The word ''degu'' comes from the indigenous language of Chile, Mapudungun, and the word ''dewü'', meaning 'mouse' or 'rat'. The animal may be kept as a domestic pet, though there are prohibitions on their ownership in some territories. As a pet, the animal is larger than a golden hamster but smaller than a fancy rat. Description The common degu is a small animal with a body length of and a weight of . It has yellow-brown fur above and creamy-yellow below, with yellow around the eyes and a paler band around the neck. It has a long, thin tail with a tufted, black tip, dark sparsel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degu (other)
The Degus are a group of octodontid rodents in the Octodontidae family, but historically referred to the common degu (''O. degus''). Degus are placed in two genera: * Genus '' Octodon'' ** ''O. bridgesi'', Bridges's degu, found in Argentina and Chile ** ''O. degus'', the common degu, historically referred to as just "degu", found in central Chile ** ''O. lunatus'', the moon-toothed degu, a nocturnal animal found in central Chile ** ''O. pacificus'', the Mocha Island degu or Pacific degu, a recently discovered species found exclusively on Mocha Island, Chile *Genus ''Octodontomys'' ** ''O. gliroides'', the mountain degu, found in the foothills of the Andes in Argentina, Bolivia and Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci .... {{disambiguation Animal common name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mapudungun
Mapuche ( , ; from 'land' and 'people', meaning 'the people of the land') or Mapudungun (from 'land' and 'speak, speech', meaning 'the speech of the land'; also spelled Mapuzugun and Mapudungu) is either a language isolate or member of the small Araucanian family related to Huilliche spoken in south-central Chile and west-central Argentina by the Mapuche people. It was formerly known as Araucanian, the name given to the Mapuche by the Spanish; the Mapuche avoid it as a remnant of Spanish colonialism. Mapudungun is not an official language of Chile and Argentina, having received virtually no government support throughout its history. However, since 2013, Mapuche, along with Spanish, has been granted the status of an official language by the local government of Galvarino, one of the many communes of Chile. It is not used as a language of instruction in either country's educational system despite the Chilean government's commitment to provide full access to education in Mapu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octodontidae
Octodontidae is a family of rodents, restricted to southwestern South America. Fourteen species of octodontid are recognised, arranged in seven genera. The best known species is the common degu, ''Octodon degus''. Octodontids are medium-sized rodents, ranging from in body length. They have long, silky fur, which is typically brownish in color and often paler on the underside. The name 'octodont' derives from the wear pattern of their teeth, which resembles a figure 8. Most are nocturnal, social, burrowing animals, though the degu is largely diurnal. They are herbivorous, eating tubers, bulbs, and cactuses. Some authors have suggested that the octodontids should be reclassified in the order Lagomorpha, but this has not been supported by further analyses. Older literature includes the tuco-tucos in the family, as the subfamily Ctenomyinae, but these animals are normally now treated as a separate family, Ctenomyidae. There is some evidence that evolution within the family may ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visual System
The visual system is the physiological basis of visual perception (the ability to perception, detect and process light). The system detects, phototransduction, transduces and interprets information concerning light within the visible range to construct an imaging, image and build a mental model of the surrounding environment. The visual system is associated with the eye and functionally divided into the optics, optical system (including cornea and crystalline lens, lens) and the nervous system, neural system (including the retina and visual cortex). The visual system performs a number of complex tasks based on the ''image forming'' functionality of the eye, including the formation of monocular images, the neural mechanisms underlying stereopsis and assessment of distances to (depth perception) and between objects, motion perception, pattern recognition, accurate motor coordination under visual guidance, and colour vision. Together, these facilitate higher order tasks, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auditory System
The auditory system is the sensory system for the sense of hearing. It includes both the ear, sensory organs (the ears) and the auditory parts of the sensory system. System overview The outer ear funnels sound vibrations to the eardrum, increasing the sound pressure in the middle frequency range. The Middle ear, middle-ear ossicles further amplify the vibration pressure roughly 20 times. The base of the stapes couples vibrations into the cochlea via the oval window, which vibrates the perilymph liquid (present throughout the inner ear) and causes the round window to bulb out as the oval window bulges in. Vestibular duct, Vestibular and tympanic ducts are filled with perilymph, and the smaller cochlear duct between them is filled with endolymph, a fluid with a very different ion concentration and voltage. Vestibular duct perilymph vibrations bend organ of Corti outer cells (4 lines) causing prestin to be released in cell tips. This causes the cells to be chemically elongated an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precocial
Precocial species in birds and mammals are those in which the young are relatively mature and mobile from the moment of birth or hatching. They are normally nidifugous, meaning that they leave the nest shortly after birth or hatching. Altricial species are those in which the young are underdeveloped at the time of birth, but with the aid of their parents mature after birth. These categories form a continuum, without distinct gaps between them. In fish, this often refers to the presence or absence of a stomach: precocial larvae have one at the onset of first feeding whereas altricial fish do not. Depending on the species, the larvae may develop a functional stomach during metamorphosis (gastric) or remain stomachless (agastric). Precociality Precocial young have open eyes, hair or down, large brains, and are immediately mobile and somewhat able to flee from or defend themselves against predators. For example, with ground-nesting birds such as ducks or turkey (bird), turkeys, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degu Father
The Degus are a group of octodontid rodents in the Octodontidae family, but historically referred to the common degu (''O. degus''). Degus are placed in two genera: * Genus '' Octodon'' ** ''O. bridgesi'', Bridges's degu, found in Argentina and Chile ** ''O. degus'', the common degu, historically referred to as just "degu", found in central Chile ** ''O. lunatus'', the moon-toothed degu, a nocturnal animal found in central Chile ** ''O. pacificus'', the Mocha Island degu or Pacific degu, a recently discovered species found exclusively on Mocha Island, Chile *Genus ''Octodontomys'' ** ''O. gliroides'', the mountain degu, found in the foothills of the Andes in Argentina, Bolivia and Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci .... {{disambiguation Animal common name d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testosterone
Testosterone is the primary male sex hormone and androgen in Male, males. In humans, testosterone plays a key role in the development of Male reproductive system, male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of androgenic hair, body hair. It is associated with increased aggression, sex drive, Dominance hierarchy, dominance, courtship display, and a wide range of behavioral characteristics. In addition, testosterone in both sexes is involved in health and well-being, where it has a significant effect on overall mood, cognition, social and sexual behavior, metabolism and energy output, the cardiovascular system, and in the prevention of osteoporosis. Insufficient levels of testosterone in men may lead to abnormalities including frailty, accumulation of adipose fat tissue within the body, anxiety and depression, sexual performance issues, and bone loss. Excessiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Territorial Marking
In ethology, territory is the sociographical area that an animal consistently defends against conspecific competition (or, occasionally, against animals of other species) using agonistic behaviors or (less commonly) real physical aggression. Animals that actively defend territories in this way are referred to as being territorial or displaying territorialism. Territoriality is only shown by a minority of species. More commonly, an individual or a group of animals occupies an area that it habitually uses but does not necessarily defend; this is called its home range. The home ranges of different groups of animals often overlap, and in these overlap areas the groups tend to avoid each other rather than seeking to confront and expel each other. Within the home range there may be a ''core area'' that no other individual group uses, but, again, this is as a result of avoidance. Function The ultimate function of animals inhabiting and defending a territory is to increase the indiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urine
Urine is a liquid by-product of metabolism in humans and many other animals. In placental mammals, urine flows from the Kidney (vertebrates), kidneys through the ureters to the urinary bladder and exits the urethra through the penile meatus (males) or urethral meatus of the vulva (females) during urination. In other vertebrates, urine is excreted through the cloaca. Urine contains water-soluble by-products of Cell (biology), cellular metabolism that are rich in nitrogen and must be clearance (medicine), cleared from the Circulatory system, bloodstream, such as urea, uric acid and creatinine. A urinalysis can detect nitrogenous wastes of the mammalian body. Urine plays an important role in the earth's nitrogen cycle. In balanced ecosystems, urine fertilizes the soil and thus helps plants to grow. Therefore, Reuse of excreta, urine can be used as a fertilizer. Some animals use it to territory (animal)#Scent marking, mark their territories. Historically, aged or fermented urine (kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vigilance
Vigilance may refer to: * Alertness * Vigilance, a creature ability in the ''Magic: The Gathering'' collectible card game * ''Vigilance'' (album), by Threat Signal * Vigilance (behavioural ecology), the watchfulness of prey for nearby predators * Vigilance (psychology), the ability to maintain attention and alertness over prolonged periods of time * ''Vigilance'' (video game), a 1998 PC game by SegaSoft * Vigilance committee, a group of private citizens formed to administer law * Vigilance committee (trade union) * Vigilance control, on railways Airship * ZPG-3W ''Vigilance'', largest US Navy non-rigid airship ever built Ship * USS Vigilance (AM-324), a US Navy minesweeper * Vigilance (fireboat), a fireboat operated by the city of Long Beach, California * BNS Vigilance, a patrol boat of the Biafran navy See also * Hypervigilance Hypervigilance is a condition in which the nervous system is inaccurately and rapidly filtering sensory information and the individ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octodon Degus -Artis Zoo, Netherlands-8b
''Octodon'' is a genus of octodontid rodents native to South America, in particular in the Chilean Andes. The best-known member is the common degu, ''O. degus'', which is kept as a pet in various countries. Two of the four species of degus are nocturnal.University of Michigan Classification This genus was first described in 1832 by the British zoologist Edward Turner Bennett.Taxonomy The genus name ''Octodon'' comes from the Latin ''octo'', eight, with reference to their teeth, molars and premolars having the shape of the number 8. The full list of species is: ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
