|
Gazehound
Sighthounds, also called gazehounds, are a type of dog, hounds that hunt primarily by sight and speed, rather than by scent and endurance as scent hounds do. Appearance These dogs specialize in pursuing prey, keeping it in sight, and overpowering it by their great speed and agility. They must be able to detect motion quickly, so they have keen vision. Sighthounds must be able to capture fast, agile prey such as deer, and hares, so they have a very flexible back and long legs for a long stride, a deep chest to support an unusually (compared to other dogs) large heart, very efficient lungs for both anaerobic and aerobic sprints, and a lean, wiry body to keep their weight at a minimum. Sighthounds have unique anatomical and physiological features likely due to intentional selection for hunting by speed and sight; laboratory studies have established reference intervals for hematology and serum biochemical profiles in sighthounds, some of which are shared by all sighthounds and som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dog Type
Dog types are broad categories of domestic dogs based on form, function, or style of work, lineage, or appearance. Some may be locally adapted dog types (or ''landraces'') that may have the visual characteristics of a modern purebred dog. In contrast, modern ''dog breeds'' strictly adhere to long-established breed standards, that began with documented foundation breeding stock sharing a common set of inheritable characteristics, developed by long-established, reputable kennel clubs that recognize the dog as a purebred. A "dog type" can be referred to broadly, as in gun dog, or more specifically, as in spaniel. Dogs raised and trained for a specific working ability rather than appearance may not closely resemble other dogs doing the same work, or any of the dogs of the analogous breed group of purebred dogs. Names in English The earliest books in the English language to mention numbers of dog types are from the "Cynegetica" (hunting literature), namely, ''The Art of Venery'' (1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coursing
Coursing by humans is the pursuit of game or other animals by dogs—chiefly greyhounds and other sighthounds—catching their prey by speed, running by sight, but not by scent. Coursing was a common hunting technique, practised by the nobility, the landed and wealthy, as well as by commoners with sighthounds and lurchers. In its oldest recorded form in the Western world, as described by Arrian, it was a sport practised by all levels of society, which remained the case until Carolingian period forest law appropriated hunting grounds, or commons, for the king, the nobility, and other land owners. It then became a formalised competition, specifically on hare in Britain, practised under rules, the ''Laws of the Leash''. As a zoological term, it refers to predation by running down prey over long distances, as opposed to stalking, in which a stealthy approach is followed by a short burst of sprinting. Sport and hunting Animals coursed in hunting and sport include hares, foxes, deer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hound
A hound is a type of hunting dog used by hunters to track or chase prey. Description Hounds can be contrasted with gun dogs that assist hunters by identifying prey and/or recovering shot quarry. The hound breeds were the first hunting dogs. They have either a powerful sense of smell, great speed, or both. There are three types of hound, with several breeds type: * Sighthounds (also called ''gazehounds'') follow prey predominantly by speed, keeping it in sight. These dogs are fast and assist hunters in catching game: fox, hare, deer, and elk. * Scenthounds follow prey or others (like missing people) by tracking its scent. These dogs have endurance, but are not fast runners. * The remaining breeds of hound follow their prey using both sight and scent. They are difficult to classify, as they are neither strictly sighthounds nor strictly scenthounds. List of hound breeds * Afghan Hound * Africanis * Alpine Dachsbracke * American Foxhound * American Leopard Hound * Andalusian H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sighthound Head
Sighthounds, also called gazehounds, are a Dog type, type of dog, hounds that hunt primarily by sight and speed, rather than by scent and endurance as scent hounds do. Appearance These dogs specialize in pursuing prey, keeping it in sight, and overpowering it by their great speed and agility. They must be able to detect motion quickly, so they have keen vision. Sighthounds must be able to capture fast, agile prey such as deer, and hares, so they have a very flexible back and long legs for a long stride, a deep chest to support an unusually (compared to other dogs) large heart, very efficient lungs for both Anaerobic exercise, anaerobic and Aerobic exercise, aerobic sprints, and a lean, wiry body to keep their weight at a minimum. Sighthounds have unique anatomical and physiological features likely due to intentional selection for hunting by speed and sight; laboratory studies have established reference intervals for hematology and serum biochemical profiles in sighthounds, some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saluki Dog Breed
The Saluki, also known as the Persian Greyhound, is a standardised breed developed from sighthounds – dogs that hunt primarily by sight rather than scent – that was once used by nomadic tribes to run down game animals. The dog was originally bred in the Fertile Crescent. The modern breed is typically deep-chested and long-legged, and similar dogs appear in medieval and ancient art. The breed is most closely related to the Afghan hound, a basal breed that predates the emergence of modern breeds in the 19th century, and the Saluki has been purebred both in the Middle East, including by royalty, since at least that era, and in the West (especially in Britain and Germany) since the 1840s (with breed standards established in the West and the Middle East around the 1920s–1930s), though as a free-breeding landrace, similar dogs are common as feral animals in the Middle East. A related standardised breed is the north African Sloughi. Name The origins of the name of the breed ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seleucid Empire
The Seleucid Empire (; grc, Βασιλεία τῶν Σελευκιδῶν, ''Basileía tōn Seleukidōn'') was a Greek state in West Asia that existed during the Hellenistic period from 312 BC to 63 BC. The Seleucid Empire was founded by the Macedonian general Seleucus I Nicator, following the division of the Macedonian Empire originally founded by Alexander the Great. After receiving the Mesopotamian region of Babylonia in 321 BC, Seleucus I began expanding his dominions to include the Near Eastern territories that encompass modern-day Iraq, Iran, Afghanistan, Syria, all of which had been under Macedonian control after the fall of the former Persian Achaemenid Empire. At the Seleucid Empire's height, it had consisted of territory that had covered Anatolia, Persia, the Levant, and what are now modern Iraq, Kuwait, Afghanistan, and parts of Turkmenistan. The Seleucid Empire was a major center of Hellenistic culture. Greek customs and language were privileged; the wide varie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tell Brak
Tell Brak (Nagar, Nawar) was an ancient city in Syria; its remains constitute a tell located in the Upper Khabur region, near the modern village of Tell Brak, 50 kilometers north-east of Al-Hasaka city, Al-Hasakah Governorate. The city's original name is unknown. During the second half of the third millennium BC, the city was known as Nagar and later on, Nawar. Starting as a small settlement in the seventh millennium BC, Tell Brak evolved during the fourth millennium BC into one of the biggest cities in Upper Mesopotamia, and interacted with the cultures of southern Mesopotamia. The city shrank in size at the beginning of the third millennium BC with the end of Uruk period, before expanding again around c. 2600 BC, when it became known as Nagar, and was the capital of a regional kingdom that controlled the Khabur river valley. Nagar was destroyed around c. 2300 BC, and came under the rule of the Akkadian Empire, followed by a period of independence as a Hurrian city-state, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrian
Arrian of Nicomedia (; Greek: ''Arrianos''; la, Lucius Flavius Arrianus; ) was a Greek historian, public servant, military commander and philosopher of the Roman period. ''The Anabasis of Alexander'' by Arrian is considered the best source on the campaigns of Alexander the Great. Scholars have generally preferred Arrian to other extant primary sources; though this attitude is beginning to change in light of modern studies into Arrian's method. Arrian's life Arrian was born in Nicomedia (present-day İzmit), the provincial capital of Bithynia. Cassius Dio called him Flavius Arrianus Nicomediensis. In respect of his birth date, sources provide similar dates for his birth; within a few years prior to 90, 89, and 85–90 AD. The line of reasoning for dates belonging to 85–90 AD is from the fact of Arrian being made a consul around 130 AD, and the usual age for this, during this period, being forty-two years of age. (ref. pp. 312, & SYME 1958, ''same page''). Hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cynegeticus
''Cynegeticus'' ( grc-gre, Κυνηγετικός, ''Kynegetikos'' "related to hunting" from κυνηγέω "I hunt"), is a treatise by the ancient Greek philosopher and military leader Xenophon, usually translated as "On Hunting" or "Hunting with Dogs." It is one of the four works by Xenophon on arts or skills (each ends with -ikos/-icus). The other three are: '' Hipparchicus'' ("The Skilled Cavalry Commander") '' Peri Hippikes'' ("On Horsemanship"), ''Oeconomicus'' ("On Estate Management"). Synopsis Chapter 1 Xenophon begins discussing the importance of hunting and how the gods Apollo and Artemis bestowed game and hounds upon Chiron the gentle centaur who used hunting to teach twenty-one heroes. The heroes mentioned are: Cephalus, Asclepius, Meilanion, Nestor, Amphiaraus, Peleus, Telamon, Meleager, Theseus, Hippolytus, Palamedes, Odysseus, Menestheus, Diomedes, Castor, Polydeuces, Machaon, Podaleirius, Antilochus, Aeneas, and Achilles. Xenophon goes on to describe the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DK (publisher)
Dorling Kindersley Limited (branded as DK) is a British multinational publishing company specialising in illustrated reference books for adults and children in 63 languages. It is part of Penguin Random House, a subsidiary of German media conglomerate Bertelsmann. Established in 1974, DK publishes a range of titles in genres including travel (including DK Eyewitness travel), history, geography, science, space, nature, sports, gardening, cookery and parenting. The worldwide co-CEOs of DK is Paul Kelly and Rebecca Smart. DK has offices in New York, Melbourne, London, Munich, New Delhi, Toronto, Madrid, Beijing, and Jiangmen. DK works with licensing partners such as Disney, LEGO, DC Comics, the Royal Horticultural Society, MasterChef, and the Smithsonian Institution. DK has commissioned Mary Berry, Monty Don, Robert Winston, Huw Richards, and Steve Mould for a range of books. History DK was founded in 1974 by Christopher Dorling and Peter Kindersley in London as a book p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retinal Ganglion Cell
A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell layer) of the retina of the human eye, eye. It receives visual information from photoreceptor cell, photoreceptors via two intermediate neuron types: Bipolar cell of the retina, bipolar cells and retina amacrine cells. Retina amacrine cells, particularly narrow field cells, are important for creating functional subunits within the ganglion cell layer and making it so that ganglion cells can observe a small dot moving a small distance. Retinal ganglion cells collectively transmit image-forming and non-image forming visual information from the retina in the form of action potential to several regions in the thalamus, hypothalamus, and mesencephalon, or midbrain. Retinal ganglion cells vary significantly in terms of their size, connections, and responses to visual stimulation but they all share the defining property of having a long axon that extends into the brain. These axons form th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
