|
Wheel Running
A hamster wheel or running wheel is an exercise device used primarily by hamsters and other rodents, but also by other cursorial animals when given the opportunity. Most of these devices consist of a runged or ridged wheel held on a stand by a single or pair of stub axles. Hamster wheels allow rodents to run even when their space is confined. The earliest dated use of the term "hamster wheel", located by the Oxford English Dictionary, is in a 1949 newspaper advertisement. Squirrel cages featured in an 1885 catalog by Osborn Manufacturing Co''.'' came with running wheels for the squirrels, similar to hamster wheels. Preferences Choice tests with Syrian hamsters (''Mesocricetus auratus'') have shown that they prefer larger wheels; the animals chose a wheel diameter of over , which itself was preferred over . Hamsters showed no preference between a relatively uniform running surface made of plastic mesh and a surface made of rungs spaced 9 mm apart, although they did prefe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wooden 33cm Hamster Wheel
Wood is a structural tissue/material found as xylem in the Plant stem, stems and roots of trees and other woody plants. It is an organic materiala natural composite material, composite of cellulose, cellulosic fibers that are strong in tension and embedded in a :wikt:matrix, matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or more broadly to include the same type of tissue elsewhere, such as in the roots of trees or shrubs. In a living tree, it performs a mechanical-support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients among the leaf, leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, woodchips, or fibers. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. Mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereotypy (non-human)
In ethology, animal behaviour, stereotypy, stereotypic or stereotyped behaviour has several meanings, leading to ambiguity in the scientific literature. A stereotypy is a term for a group of Phenotypic trait, phenotypic behaviours that are repetitive, morphologically identical and which possess no obvious goal or function. These behaviours have been defined as "Abnormality (behavior), abnormal", as they exhibit themselves solely in animals subjected to barren environments, scheduled or restricted feedings, social deprivation and other cases of frustration, but do not arise in "normal" animals in their natural environments. These behaviours may be maladaptive, involving self-injury or reduced reproductive success, and in laboratory animals can confound behavioural research. Stereotypical behaviours are thought to be caused ultimately by artificial environments that do not allow animals to satisfy their normal behavioural needs. Rather than refer to the behaviour as abnormal, it h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metabolism
Metabolism (, from ''metabolē'', "change") is the set of life-sustaining chemical reactions in organisms. The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the conversion of food to building blocks of proteins, lipids, nucleic acids, and some carbohydrates; and the elimination of metabolic wastes. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their Structures#Biological, structures, and respond to their environments. The word ''metabolism'' can also refer to the sum of all chemical reactions that occur in living organisms, including digestion and the transportation of substances into and between different cells, in which case the above described set of reactions within the cells is called intermediary (or intermediate) metabolism. Metabolic reactions may be categorized as ''catabolic''—the ''breaking down'' of compounds (for example, of glucose to pyruvate by c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleogryllus Commodus
''Teleogryllus commodus'', commonly known as the black field cricket, is a cricket species native to Australia. They are significant pests to most plants in Australia and New Zealand.Chen G, Vickery V.R., and Kevan D.K. 1967. A Morphological Comparison of Antipodean ''Teleogryllus'' Species. ''Canadian Journal of Zoology'' 45: 1215-1224 . ''T. commodus'' belongs to the order Orthoptera, the family Gryllidae which are characterized by wings that are folded on the side of the body, chewing mouthparts and long, thin antennae. ''T. commodus'' has the ability to learn via the recognition of rewards. They are also capable of odour recognition and thus can be taught via odour pairing.Anderson C, Kasumovic M. 2017. Development rate rather than social environment influences cognitive performance in Australian black field crickets, ''Teleogryllus commodus''. ''PeerJ'' 5: 1-15. Morphology ''T. commodus'' can grow up to 30 mm long, with long antennas and legs adapted for jumping.Kim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockroach
Cockroaches (or roaches) are insects belonging to the Order (biology), order Blattodea (Blattaria). About 30 cockroach species out of 4,600 are associated with human habitats. Some species are well-known Pest (organism), pests. Modern cockroaches are an ancient group that first appeared during the Late Jurassic, with their ancestors, known as "Roachoid, roachoids", likely originating during the Carboniferous period around 320 million years ago. Those early ancestors, however, lacked the internal ovipositors of modern roaches. Cockroaches are somewhat generalized insects lacking special adaptations (such as the sucking Insect mouthparts, mouthparts of aphids and other Hemiptera, true bugs); they have chewing mouthparts and are probably among the most primitive of living Neopteran insects. They are common and hardy insects capable of tolerating a wide range of Köppen climate classification, climates, from Arctic cold to Tropics, tropical heat. Tropical cockroaches are often muc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chronobiology
Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, such as their adaptation to solar- and lunar-related rhythms. These cycles are known as biological rhythms. Chronobiology comes from the ancient Greek χρόνος (''chrónos'', meaning "time"), and biology, which pertains to the study, or science, of life. The related terms ''chronomics'' and ''chronome'' have been used in some cases to describe either the molecular mechanisms involved in chronobiological phenomena or the more quantitative aspects of chronobiology, particularly where comparison of cycles between organisms is required. Chronobiological studies include but are not limited to comparative anatomy, physiology, genetics, molecular biology and behavior of organisms related to their biological rhythms. Other aspects include epigenetics, development, reproduction, ecology and evolution. The subject Chronobiology studies variations of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circadian Rhythms
A circadian rhythm (), or circadian cycle, is a natural oscillation that repeats roughly every 24 hours. Circadian rhythms can refer to any process that originates within an organism (i.e., endogenous) and responds to the environment (is entrained by the environment). Circadian rhythms are regulated by a circadian clock whose primary function is to rhythmically co-ordinate biological processes so they occur at the correct time to maximize the fitness of an individual. Circadian rhythms have been widely observed in animals, plants, fungi and cyanobacteria and there is evidence that they evolved independently in each of these kingdoms of life. The term ''circadian'' comes from the Latin ', meaning "around", and ', meaning "day". Processes with 24-hour cycles are more generally called diurnal rhythms; diurnal rhythms should not be called circadian rhythms unless they can be confirmed as endogenous, and not environmental. Although circadian rhythms are endogenous, they are adjuste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canyon Mouse
The canyon mouse (''Peromyscus crinitus'') is a species of rodent in the family Cricetidae. It is a species of the genus ''Peromyscus'', a closely related group of New World mice often called "deermice". It is a gray-brown mouse-like rodent found in much of the western United States and northern Mexico. Its preferred habitat is arid, rocky desert. Vegetation has little or no effect on the distribution of canyon mice, it is instead associated with rocky substrate than any plant. Canyon mice forage in areas with shrub-like vegetation which can be used for protection against predators. It is the only species in the ''Peromyscus crinitus'' species group. Canyon mice eat seeds, green vegetation, and insects. Small animals and insects make up a larger portion of diet when seeds and vegetation are rare. They breed in the spring and summer. Females can produce multiple litters of between two and five young every year. Males do not mate with more than one female, and the homes ranges o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitrail
Habitrail is a brand name for a hamster cage made by the Hagen corporation. It is a series of translucent plastic tubes and "houses" for use in home terrariums, designed specially for hamsters. The design of the Habitrail is modular and can be configured however the owner likes, as well as disassembled for cleaning. The Habitrail is meant to mimic the habitat of the animal in question, usually a warren, or series of tunnels. The mascot for Habitrail is "Herbie the Hamster", who even has a video game based on him called ''Habitrail Hamster Ball'' produced by Data Design Interactive in 2005 and released for the PS2, and the PC. Reception Habitrails are rather small. This tends to be a problem for Syrian hamster The golden hamster or Syrian hamster (''Mesocricetus auratus'') is a rodent belonging to the hamster subfamily, Cricetinae. Their natural geographical range is in an arid region of northern Syria and southern Turkey. Their numbers have been d ...s, who often get ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Garland, Jr
Theodore may refer to: Places * Theodore, Australian Capital Territory, Australia * Theodore, Queensland, Australia * Theodore, Saskatchewan, Canada * Theodore, Alabama, United States * Theodore Reservoir, in Saskatchewan People * Theodore (given name), including a list of people with the name ** Theodore Roosevelt Theodore Roosevelt Jr. (October 27, 1858 – January 6, 1919), also known as Teddy or T.R., was the 26th president of the United States, serving from 1901 to 1909. Roosevelt previously was involved in New York (state), New York politics, incl ..., 26th President of the United States ** Grand Wizzard Theodore, American musician and DJ * Theodore (surname), including a list of people with the name Fictional characters * T-Bag (''Prison Break'') (Theodore Bagwell), in ''Prison Break'' * T-Dog (''The Walking Dead'') (Theodore Douglas), in ''The Walking Dead'' * Theodore Huxtable, in ''The Cosby Show'' * Theodore, in '' Alvin and the Chipmunks'' * Theodore Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Consumer Demand Tests (animals)
Consumer demand tests for animals are studies designed to measure the relative strength of an animal's motivation to obtain resources such as different food items. Such demand tests quantify the strength of motivation animals have for resources whilst avoiding anthropomorphism and anthropocentrism. The test results are analogous to human patterns of purchasing resources with a limited income.Lea, S.E.G., (1978). The psychology and economics of demand. Psychological Bulletin, 85:441–466Dawkins, M.S., (1983). Battery hens name their price: consumer demand theory and the measurement of ethological "needs". Animal Behaviour, 31: 1195–1205 For humans, the cost of resources is usually measured in money; in animal studies the cost is usually represented by energy required, time taken or a risk of injury.Dawkins, M.S., (1990). From an animal's point of view: motivation, fitness, and animal welfare. Behavioral and Brain Sciences, 13: 1–61 Costs of resources can be imposed on animals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
