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Wild Animal Suffering
Wild animal suffering is the suffering experienced by nonhuman animals living outside of direct human control, due to harms such as disease, injury, parasitism, starvation and malnutrition, dehydration, weather conditions, natural disasters, and killings by other animals, as well as psychological stress. Some estimates indicate that these individual animals make up the vast majority of animals in existence. An extensive amount of natural suffering has been described as an unavoidable consequence of Darwinian evolution and the pervasiveness of reproductive strategies which favor producing large numbers of offspring, with a low amount of parental care and of which only a small number survive to adulthood, the rest dying in painful ways, has led some to argue that suffering dominates happiness in nature. The topic has historically been discussed in the context of the philosophy of religion as an instance of the problem of evil. More recently, starting in the 19th century, a numbe ...
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Hawk Eating Prey
Hawks are bird of prey, birds of prey of the family Accipitridae. They are widely distributed and are found on all continents except Antarctica. * The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfamily are mainly woodland birds with long tails and high visual acuity. They hunt by dashing suddenly from a concealed perch. * In America, members of the ''Buteo'' group are also called hawks; this group is called buzzards in other parts of the world. Generally, buteos have broad wings and sturdy builds. They are relatively larger-winged, shorter-tailed and fly further distances in open areas than accipiters. Buteos descend or pounce on their prey rather than hunting in a fast horizontal pursuit. The terms ''accipitrine hawk'' and ''buteonine hawk'' are used to distinguish between the types in regions where ''hawk'' applies to both. The term ''"true hawk"'' is sometimes used for the accipitrine hawks in regions where ''buzzard'' i ...
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Playing God (ethics)
Playing God refers to assuming powers of decision, intervention or control metaphorically reserved to God. Acts described as playing God may include, for example, deciding who should live or die in a situation where not everyone can be saved, the use and development of biotechnologies such as synthetic biology, and in vitro fertilisation. Usually the expression is used pejoratively and to criticize or argue against the supposedly God-like actions. Description Playing God is a broad concept, which is encompassed by both theological and scientific topics. When the term is used, it can be used to refer to people who try to exercise great authority and power. It is usually pejorative and suggests arrogance, misappropriation of power, or tampering with matters in which humans should not meddle. Etymology "Playing God" generally refers to someone using their power to make decisions regarding the fate of another's life or many lives. Theologian Paul Ramsey is noted for saying, ...
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Deer Cutaneous Fibroma
Cutaneous fibromas (also known as deer warts) are common neoplasms occurring in wild and domestic deer of many species and are caused by host-specific viral infections. The fibromas occur most frequently in animals under 2 years of age, with cases in older deer reported occasionally or rarely. Deer fibromas appear on the skin as hard and round tumors that can be up to 1 cm in diameter. The tumors are blackish or brown and have a rough-textured surface. They do not cause the animal harm unless clumps of fibromas interfere with breathing, eating, or walking. Fibromas have been reported in white-tailed deer (''Odocoileus virginianus''), mule deer (''Odocoileus hemionus''), fallow deer (''Cervus dama''), red deer (''Cervus elaphus''), roe deer (''Capreolus capreolus''), Sika deer (''Cervus nippon''), moose (''Alces alces''), and caribou (''Rangifer caribou'')." They occur across the entirety of the white-tail deer's range. Clinical signs and symptoms The only visible signs of cut ...
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Ringworm
Dermatophytosis, also known as ringworm, is a fungal infection of the skin. Typically it results in a red, itchy, scaly, circular rash. Hair loss may occur in the area affected. Symptoms begin four to fourteen days after exposure. Multiple areas can be affected at a given time. About 40 types of fungus can cause ringworm. They are typically of the ''Trichophyton'', ''Microsporum'', or ''Epidermophyton'' type. Risk factors include using public showers, contact sports such as wrestling, excessive sweating, contact with animals, obesity, and poor immune function. Ringworm can spread from other animals or between people. Diagnosis is often based on the appearance and symptoms. It may be confirmed by either culturing or looking at a skin scraping under a microscope. Prevention is by keeping the skin dry, not walking barefoot in public, and not sharing personal items. Treatment is typically with antifungal creams such as clotrimazole or miconazole. If the scalp is involved, ant ...
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Viral Haemorrhagic Disease
Rabbit hemorrhagic disease (RHD), also known as viral hemorrhagic disease (VHD), is a highly infectious and lethal form of viral hepatitis that affects European rabbits. Some viral strains also affect hares and cottontail rabbits. Mortality rates generally range from 70 to 100 percent. The disease is caused by strains of ''rabbit hemorrhagic disease virus'' (RHDV), a lagovirus in the family ''Caliciviridae''. ''Rabbit hemorrhagic disease virus'' ''Rabbit hemorrhagic disease virus'' (RHDV) is a virus in the genus ''Lagovirus'' and the family ''Caliciviridae''. It is a nonenveloped virus with a diameter around 35–40 nm, icosahedral symmetry, and a linear positive-sense RNA genome of 6.4–8.5 kb. RHDV causes a generalized infection in rabbits that is characterized by liver necrosis, disseminated intravascular coagulation, and rapid death. Division into serotypes has been defined by a lack of cross-neutralization using specific antisera. Rabbit lagoviruses also include rel ...
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Myxomatosis
Myxomatosis is a disease caused by ''Myxoma virus'', a poxvirus in the genus ''Leporipoxvirus''. The natural hosts are tapeti (''Sylvilagus brasiliensis'') in South and Central America, and brush rabbits (''Sylvilagus bachmani'') in North America. The myxoma virus causes only a mild disease in these species, but causes a severe and usually fatal disease in European rabbits (''Oryctolagus cuniculus''). Myxomatosis is an excellent example of what occurs when a virus jumps from a species adapted to it to a naive host, and has been extensively studied for this reason. The virus was intentionally introduced in Australia, France, and Chile in the 1950s to control wild European rabbit populations. Cause ''Myxoma virus'' is in the genus ''Leporipoxvirus'' (family ''Poxviridae''; subfamily ''Chordopoxvirinae''). Like other poxviruses, myxoma viruses are large DNA viruses with linear double-stranded DNA. Virus replication occurs in the cytoplasm of the cell. The natural hosts are tapet ...
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Virulent Newcastle Disease
Virulent Newcastle disease (VND), formerly exotic Newcastle disease, is a contagious viral avian disease affecting many domestic and wild bird species; it is transmissible to humans. Though it can infect humans, most cases are non-symptomatic; rarely it can cause a mild fever and influenza-like symptoms and/or conjunctivitis in humans. Its effects are most notable in domestic poultry due to their high susceptibility and the potential for severe impacts of an epizootic on the poultry industries. It is endemic to many countries. No treatment for VND is known, but the use of prophylactic vaccines and sanitary measures reduces the likelihood of outbreaks. The disease is caused by Newcastle disease virus (NDV), an avulavirus. Strains of Newcastle disease virus have been used to treat cancer in humans, since the virus appears to preferentially infect and kill cancerous cells. Strains of Newcastle disease virus have also been used to create viral vector vaccine candidates against Ebol ...
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Devil Facial Tumour Disease
Devil facial tumour disease (DFTD) is an aggressive non-viral clonally transmissible cancer which affects Tasmanian devils, a marsupial native to Australia. DFTD was first described in 1996. In the subsequent decade the disease ravaged Tasmania's wild devils. Affected high-density populations had up to 100% mortality in 12–18 months. Between 1996 and 2015, DFTD wiped out 95% of affected populations. Clinical signs There is often more than one primary tumour. Visible signs of DFTD begin with lumps of soft tissue around the mouth, which ulcerate. Tumours are locally aggressive, destroying the underlying bone of the jaw which interferes with feeding. Tumours may also cover the eyes. Devils usually die within six months from organ failure, secondary infection, or metabolic starvation. DFTD is rare in juveniles. It affects males and females equally. Transmission The most plausible route of transmission is through biting, particularly when canine teeth come into direct contact with ...
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White-nose Syndrome
White-nose syndrome (WNS) is a fungal disease in North American bats which has resulted in the dramatic decrease of the bat population in the United States and Canada, reportedly killing millions as of 2018. The condition is named for a distinctive fungal growth around the muzzles and on the wings of hibernating bats. It was first identified from a February 2006 photo taken in a cave located in Schoharie County, New York. The syndrome has rapidly spread since then. In early 2018, it was identified in 33 U.S. states and seven Canadian provinces; plus the fungus, albeit sans syndrome, had been found in three additional states. Most cases are in the eastern half of both countries, but in March 2016, it was confirmed in a little brown bat in Washington state. In 2019, evidence of the fungus was detected in California for the first time, although no affected bats were found. The disease is caused by the fungus ''Pseudogymnoascus destructans'', which colonizes the bat's skin. No obvi ...
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Chronic Wasting Disease
Chronic wasting disease (CWD), sometimes called zombie deer disease, is a transmissible spongiform encephalopathy (TSE) affecting deer. TSEs are a family of diseases thought to be caused by misfolded proteins called prions and include similar diseases such as BSE (mad cow disease) in cattle, Creutzfeldt-Jakob disease (CJD) in humans and scrapie in sheep. In the United States, CWD affects mule deer, white-tailed deer, red deer, sika deer, elk, caribou, and moose. Natural infection causing CWD affects members of the deer family. Experimental transmission of CWD to other species such as squirrel monkeys and genetically modified mice has been shown. In 1967, CWD was first identified in mule deer at a government research facility in northern Colorado, United States. It was initially recognized as a clinical "wasting" syndrome and then in 1978, it was identified more specifically as a TSE disease. Since then, CWD has been found in free-ranging and captive animal populations in 30 US ...
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Epidemic
An epidemic (from Ancient Greek, Greek ἐπί ''epi'' "upon or above" and δῆμος ''demos'' "people") is the rapid spread of disease to a large number of patients among a given population within an area in a short period of time. Epidemics of infectious diseases are generally caused by several factors including a significant change in the ecology of the areal population (e.g., increased stress maybe additional reason or increase in the density of a vector species), the introduction of an emerging pathogen to an areal population (by movement of pathogen or host) or an unexpected genetic change that is in the pathogen reservoir. Generally, epidemics concerns with the patterns of infectious disease spread. An epidemic may occur when host immunity to either an established pathogen or newly emerging novel pathogen is suddenly reduced below that found in the endemic equilibrium and the transmission threshold is exceeded. For example, in meningococcal infections, an attack rate in ...
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Epizootic
In epizoology, an epizootic (from Greek: ''epi-'' upon + ''zoon'' animal) is a disease event in a nonhuman animal population analogous to an epidemic in humans. An epizootic may be restricted to a specific locale (an "outbreak"), general (an "epizootic"), or widespread ("panzootic"). High population density is a major contributing factor to epizootics. Aquaculture is an industry sometimes plagued by disease because of the large number of fish confined to a small area. Defining an epizootic can be subjective; it is based upon the number of new cases in a given animal population, during a given period, and must be judged to be a rate that substantially exceeds what is expected based on recent experience (''i.e.'' a sharp elevation in the incidence rate). Because it is based on what is "expected" or thought normal, a few cases of a very rare disease (like a transmissible spongiform encephalopathy outbreak in a cervid population) might be classified as an "epizootic", while many ca ...
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