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Quadripedal
Quadrupedalism is a form of locomotion in which animals have four legs that are used to bear weight and move around. An animal or machine that usually maintains a four-legged posture and moves using all four legs is said to be a quadruped (from Latin ''quattuor'' for "four", and ''pes'', ''pedis'' for "foot"). Quadruped animals are found among both vertebrates and invertebrates. Quadrupeds vs. tetrapods Although the words ‘quadruped’ and ‘tetrapod’ are both derived from terms meaning ‘four-footed’, they have distinct meanings. A tetrapod is any member of the taxonomic unit Tetrapoda (which is defined by descent from a specific four-limbed ancestor), whereas a quadruped actually uses four limbs for locomotion. Not all tetrapods are quadrupeds and not all quadrupedal animals are tetrapods; some arthropods are adapted for four-footed locomotion, such as the raptorial Mantodea, or mantises, and the Nymphalidae, or brush-footed butterflies—the largest butterfly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zebra Sideview
Zebras (, ) (subgenus ''Hippotigris'') are African equines with distinctive black-and-white striped Animal coat, coats. There are three Extant taxon, living species: Grévy's zebra (''Equus grevyi''), the plains zebra (''E. quagga''), and the mountain zebra (''E. zebra''). Zebras share the genus ''Equus (genus), Equus'' with Wild horse, horses and Asinus, asses, the three groups being the only living members of the family Equidae. Zebra stripes come in different patterns, unique to each individual. Several theories have been proposed for the function of these patterns, with most evidence supporting them as a deterrent for biting flies. Zebras inhabit East Africa, eastern and southern Africa and can be found in a variety of habitats such as savannahs, grasslands, woodlands, shrublands, and mountainous areas. Zebras are primarily grazing (behaviour), grazers and can subsist on lower-quality vegetation. They are preyed on mainly by lions, and typically flee when threatened but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evolutionary Biology
Evolutionary biology is the subfield of biology that studies the evolutionary processes such as natural selection, common descent, and speciation that produced the diversity of life on Earth. In the 1930s, the discipline of evolutionary biology emerged through what Julian Huxley called the Modern synthesis (20th century), modern synthesis of understanding, from previously unrelated fields of biological research, such as genetics and ecology, systematics, and paleontology. The investigational range of current research has widened to encompass the genetic architecture of adaptation, molecular evolution, and the different forces that contribute to evolution, such as sexual selection, genetic drift, and biogeography. The newer field of evolutionary developmental biology ("evo-devo") investigates how embryogenesis is controlled, thus yielding a wider synthesis that integrates developmental biology with the fields of study covered by the earlier evolutionary synthesis. Subfields ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BigDog
BigDog is a dynamically stable quadruped military robot platform that was created in 2005 by Boston Dynamics with the Harvard University Concord Field Station. It was funded by the U.S. Defense Advanced Research Projects Agency (DARPA), but the project was shelved after the BigDog's gas engine was deemed too loud for combat. History BigDog was funded by the Defense Advanced Research Projects Agency (DARPA) in the hopes that it would be able to serve as a mechanic mule, pack mule to accompany soldiers in terrain too rough for conventional vehicles. Instead of wheels or treads, BigDog uses four legs for movement, allowing it to move across surfaces that would be difficult for wheels. The legs contain a variety of sensors, including joint position and ground contact. BigDog also features a Fibre-optic gyroscope, laser gyroscope and a stereo vision system. BigDog is long, stands tall, and weighs , making it about the size of a small mule. It is capable of traversing difficult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HuffPost
''HuffPost'' (''The Huffington Post'' until 2017, itself often abbreviated as ''HPo'') is an American progressive news website, with localized and international editions. The site offers news, satire, blogs, and original content, and covers politics, business, entertainment, environment, technology, popular media, lifestyle, culture, comedy, healthy eating, young women's interests, and local news featuring columnists. It was created to provide a progressive alternative to conservative news websites such as the Drudge Report. The site contains its own content and user-generated content via video blogging, audio, and photo. In 2012, the website became the first commercially run United States digital media enterprise to win a Pulitzer Prize. Founded by Arianna Huffington, Andrew Breitbart, Kenneth Lerer, and Jonah Peretti, the site was launched on May 9, 2005, as a counterpart to the Drudge Report. In March 2011, it was acquired by AOL for US$315 million, with Arianna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulas Family
The Ulas family of 19 is from rural southern Turkey. Five of the family members (except for another, who has died) walk on all fours with their feet and the palms of their hands in what is called a "bear crawl". Their quadrupedal gait had never been reported in anatomically intact adult humans, but was later also discovered in other families in the region. The gait is different from the knuckle-walking quadrupedal gait of apes. In 2006, the family was the subject of a documentary: '' The Family That Walks on All Fours''. The affected people have a form of non-progressive congenital cerebellar ataxia. The brain impairments include cerebellar hypoplasia, mild cerebral cortex atrophy and a reduced corpus callosum. They are also mildly intellectually disabled and have problems in balancing on two legs. However, they do not show the poor coordination of hands, speech, and eye movements often found in cerebellar ataxia. The four sisters can do needlework. They all share a recessive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knuckle-walking
Knuckle-walking is a form of quadrupedal walking in which the forelimbs hold the fingers in a partially flexed posture that allows body weight to press down on the ground through the knuckles. Gorillas and chimpanzees use this style of locomotion, as do anteaters and platypuses. Knuckle-walking helps with actions other than locomotion on the ground. Gorillas use fingers for the manipulation of food, whereas chimpanzees use fingers for the manipulation of food and climbing. In anteaters and pangolins, the fingers have large claws for opening the mounds of social insects. Platypus fingers have webbing that extend past the fingers to aid in swimming, thus knuckle-walking is used to prevent stumbling. Gorillas move around by knuckle-walking, although they sometimes walk bipedally for short distances while carrying food or in defensive situations. Mountain gorillas use knuckle-walking plus other parts of their hand—fist-walking does not use the knuckles, using the backs of their h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Chimpanzee
The chimpanzee (; ''Pan troglodytes''), also simply known as the chimp, is a species of great ape native to the forests and savannahs of tropical Africa. It has four confirmed subspecies and a fifth proposed one. When its close relative the bonobo was more commonly known as the pygmy chimpanzee, this species was often called the common chimpanzee or the robust chimpanzee. The chimpanzee and the bonobo are the only species in the genus ''Pan''. Evidence from fossils and DNA sequencing shows that ''Pan'' is a sister taxon to the human lineage and is thus humans' closest living relative. The chimpanzee is covered in coarse black hair but has a bare face, fingers, toes, palms of the hands, and soles of the feet. It is larger and more robust than the bonobo, weighing for males and for females and standing . The chimpanzee lives in groups that range in size from 15 to 150 members, although individuals travel and forage in much smaller groups during the day. The species lives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkish People
Turks (), or Turkish people, are the largest Turkic peoples, Turkic ethnic group, comprising the majority of the population of Turkey and Northern Cyprus. They generally speak the various Turkish dialects. In addition, centuries-old Turkish communities in the former Ottoman Empire, ethnic Turkish communities still exist across other former territories of the Ottoman Empire. Article 66 of the Constitution of Turkey defines a ''Turk'' as anyone who is a citizen of the Turkish state. While the legal use of the term ''Turkish'' as it pertains to a citizen of Turkey is different from the term's ethnic definition, the majority of the Turkish population (an estimated 70 to 75 percent) are of Turkish ethnicity. The vast majority of Turks are Sunni Islam, Sunni Muslims, with a notable minority practicing Alevism. The ethnic Turks can therefore be distinguished by a number of cultural and regional variants, but do not function as separate ethnic groups. In particular, the culture of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turkey
Turkey, officially the Republic of Türkiye, is a country mainly located in Anatolia in West Asia, with a relatively small part called East Thrace in Southeast Europe. It borders the Black Sea to the north; Georgia (country), Georgia, Armenia, Azerbaijan, and Iran to the east; Iraq, Syria, and the Mediterranean Sea to the south; and the Aegean Sea, Greece, and Bulgaria to the west. Turkey is home to over 85 million people; most are ethnic Turkish people, Turks, while ethnic Kurds in Turkey, Kurds are the Minorities in Turkey, largest ethnic minority. Officially Secularism in Turkey, a secular state, Turkey has Islam in Turkey, a Muslim-majority population. Ankara is Turkey's capital and second-largest city. Istanbul is its largest city and economic center. Other major cities include İzmir, Bursa, and Antalya. First inhabited by modern humans during the Late Paleolithic, present-day Turkey was home to List of ancient peoples of Anatolia, various ancient peoples. The Hattians ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kenichi Ito (athlete)
is a Japanese athlete from Tokyo. He has held the Guinness World Record for running 100 meters on all four limbs, multiple times, most recently from 6 November 2015 until 30 June 2022. The current record is held by Collin McClure. Ito set a best time of 15.71 seconds in Tokyo's Komazawa Olympic Park Komazawa Olympic Park (駒沢オリンピック公園) is a sports facility that was constructed for the 1964 Summer Olympics. Approximately 90 per cent of the park's area is in Setagaya, with the remaining 10 per cent sitting within Meguro. Th ..., shaving 0.15 seconds off the previous record of 15.86 seconds, by Katsumi Tamakoshi. Before Tamakoshi's record, Ito held the record of 16.87 seconds, set on 14 November 2013. He also held the record before that, having set a time of 17.47 seconds on 15 November 2012, and the record before that of 18.58 seconds in 2008. Ito spent nine years studying how animals like African patas monkeys move. He used to work as a janitor and mopped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges Hebert
Georges may refer to: Places *Georges River, New South Wales, Australia * Georges Quay (Dublin) * Georges Township, Fayette County, Pennsylvania Other uses * Georges (name) * ''Georges'' (novel), a novel by Alexandre Dumas * "Georges" (song), a 1977 song originally recorded by Pat Simon and covered by Sylvie Vartan * Georges (store), a department store in Melbourne, Australia from 1880 to 1995 * Georges (''Green Card'' character) People with the surname * Eugenia Georges, American anthropologist * Karl Ernst Georges (1806–1895), German classical philologist and lexicographer, known for his edition of Latin-German dictionaries. * Mary Ngwanda Georges, Congo-born American politician See also * École secondaire Georges-P.-Vanier, a high school in Hamilton, Ontario, Canada * École secondaire Georges-Vanier in Laval, Quebec, Canada * French cruiser ''Georges Leygues'', commissioned in 1937 * French frigate ''Georges Leygues'' (D640), commissioned in 1979 * Georges Krayem, Brazilia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
