Besides petit juries for jury trials and grand juries for issuing indictments, juries are sometimes used in non-legal or quasi-legal contexts. Blue ribbon juries attend to civic matters as an ad-hoc body in the executive branch of a government. Outside government, a jury or panel of judges may make determinations in competition, such as at a wine tasting, art exhibition, or talent contest. These types of contests are juried competitions. Blue ribbon juries are juries selected from prominent, well-educated citizens, sometimes to investigate a particular problem such as civic corruption. Blue ribbon juries cannot be used in real trials, which require constitutional safeguards to produce a jury of one's peers. The blue-ribbon jury is intended to overcome the problems of ordinary juries in interpreting complex technical or commercial questions. In the United States blue-ribbon juries were provided for by statutes, the terms varying by jurisdiction. Competition in biology, ecology, and sociology, is a contest between organisms, animals, individuals, groups, etc., for territory, a niche, or a location of resources, for resources and goods, for prestige, recognition, awards, mates, or group or social status, for leadership; it is the opposite of cooperation. It arises whenever at least two parties strive for a goal which cannot be shared or which is desired individually but not in sharing and cooperation. Competition occurs naturally between living organisms which co-exist in the same environment. For example, animals compete over water supplies, food, mates, and other biological resources. Humans compete usually for food and mates, though when these needs are met deep rivalries often arise over the pursuit of wealth, pres
ige, and fame. Competition is also a major tenet in market economy and business is often associated with competition as most companies are in competition with at least one other firm over the same group of customers, and also competition inside a company is usually stimulated for meeting and reaching higher quality of services or products that the company produce or develop. A competition or trade promotion lottery, is also the equivalent of sweepstakes in some countries. Competition can have both beneficial and detrimental effects. Many evolutionary biologists view inter-species and intra-species competition as the driving force of adaptation, and ultimately of evolution. However, some biologists, most famously Richard Dawkins, prefer to think of evolution in terms of competition between single genes, which have the welfare of the organism 'in mind' only insofar as that welfare furthers their own selfish drives for replication. Some social darwinists claim that competition also serves as a mechanism for determining the best-suited group; politically, economically and ecologically. Positively, competition may serve as a form of recreation or a challenge provided that it is non-hostile. On the negative side, competition can cause injury and loss to the organisms involved, and drain valuable resources and energy. In the human species competition can be expensive on many levels, not only in lives lost to war, physical injuries, and damaged psychological well beings, but also in the health effects from everyday civilian life caused by work stress, long work hours, abusive working relationships, and poor working conditions, that detract from the enjoyment of life, even as such competition results in financial gain for the owners.