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Rainbow Trout
The RAINBOW TROUT ( Oncorhynchus mykiss) is a trout and species of salmonid native to cold-water tributaries of the Pacific Ocean
Pacific Ocean
in Asia and North America. The STEELHEAD (sometimes called "steelhead trout") is an anadromous (sea-run) form of the COASTAL RAINBOW TROUT (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually returns to fresh water to spawn after living two to three years in the ocean. Freshwater forms that have been introduced into the Great Lakes
Great Lakes
and migrate into tributaries to spawn are also called steelhead. Adult freshwater stream rainbow trout average between 1 and 5 lb (0.5 and 2.3 kg), while lake-dwelling and anadromous forms may reach 20 lb (9 kg). Coloration varies widely based on subspecies , forms and habitat
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Southern Europe
SOUTHERN EUROPE is the southern region of the European continent . Most definitions of Southern Europe, also known as MEDITERRANEAN EUROPE, include the countries of the Iberian peninsula ( Spain
Spain
and Portugal
Portugal
), the Italian peninsula
Italian peninsula
, Greece
Greece
and Malta
Malta
. The definition of Southern Europe
Europe
may include the entirety of Southeast Europe
Europe
or the Balkan countries of Southeast Europe, which are geographically technically in the southern part of Europe
Europe
but have particular historical, political, economic, and cultural backgrounds that distinguish them from the main Southern European countries and places them more in the category of Eastern Europe
Europe

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Hybrid (biology)
In biology , a HYBRID, or crossbreed , is the result of combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction . Hybrids are not always intermediates between their parents (such as in blending inheritance ), but can show hybrid vigour , often growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics , attention is focused on the numbers of chromosomes . In taxonomy, a key question is how closely related the parent species are. Species
Species
are reproductively isolated by strong barriers to hybridisation, which include morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it
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Wyoming
WYOMING /waɪˈoʊmɪŋ/ ( listen ) is a state in the mountain region of the western United States. The state is the tenth largest by area , the least populous and the second least densely populated state in the country. Wyoming
Wyoming
is bordered on the north by Montana
Montana
, on the east by South Dakota
South Dakota
and Nebraska
Nebraska
, on the south by Colorado
Colorado
, on the southwest by Utah
Utah
, and on the west by Idaho
Idaho
. The state population was estimated at 586,107 in 2015, which is less than 31 of the largest U.S. cities . Cheyenne is the capital and the most populous city, with population estimated at 63,335 in 2015
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Distinct Population Segment
A DISTINCT POPULATION SEGMENT is the smallest division of a taxonomic species permitted to be protected under the U.S. Endangered Species Act . Species, as defined in the Act for listing purposes, is a taxonomic species or subspecies of plant or animal, or in the case of vertebrate species, a distinct population segment (DPS). CONTENTS* 1 Criteria for Designation * 1.1 Discreteness * 1.2 Significance * 1.3 Status * 2 Priorities * 3 Relationship to Evolutionarily Significant Units (ESU\'s) * 4 References * 5 External links CRITERIA FOR DESIGNATIONThe criteria for designation of a population or group of populations as a DPS was most recently articulated in a 1996 joint USFWS -NMFS policy (61 FR 4722: February 7, 1996): Three elements are considered in a decision regarding the status of a possible DPS as endangered or threatened under the Act
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Fish Hatchery
A FISH HATCHERY is a "place for artificial breeding, hatching and rearing through the early life stages of animals, finfish and shellfish in particular". Hatcheries produce larval and juvenile fish (and shellfish and crustaceans) primarily to support the aquaculture industry where they are transferred to on-growing systems i.e. fish farms to reach harvest size. Some species that are commonly raised in hatcheries include Pacific oysters , shrimp , Indian prawns , salmon , tilapia and scallops . The value of global aquaculture production is estimated to be US$98.4 billion in 2008 with China significantly dominating the market, however the value of aquaculture hatchery and nursery production has yet to be estimated. Additional hatchery production for small-scale domestic uses, which is particularly prevalent in South-East Asia or for conservation programmes, has also yet to be quantified
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Gill
A GILL (/ɡɪl/ ( listen )) is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide . The gills of some species, such as hermit crabs , have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. BRANCHIA (pl. branchiae) is the zoologists' name for gills. With the exception of some aquatic insects , the filaments and lamellae (folds) contain blood or coelomic fluid , from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide
Carbon dioxide
passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks , crustaceans , insects, fish, and amphibians
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Great Lakes
The GREAT LAKES (French : les Grands-Lacs), also called the LAURENTIAN GREAT LAKES and the GREAT LAKES OF NORTH AMERICA, are a series of interconnected freshwater lakes located primarily in the upper mid-east region of North America , on the Canada–United States border , which connect to the Atlantic Ocean through the Saint Lawrence River . Consisting of Lakes Superior , Michigan , Huron (or Michigan–Huron ), Erie , and Ontario , they form the largest group of freshwater lakes on Earth by total area, and second largest by total volume containing 21% of the world's surface fresh water by volume. The total surface is 94,250 square miles (244,106 km2), and the total volume (measured at the low water datum) is 5,439 cubic miles (22,671 km3)
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Subspecies
In biological classification , SUBSPECIES (abbreviated "SUBSP." or "SSP."; plural : "subspecies") is either a taxonomic rank subordinate to species , or a taxonomic unit in that rank. A subspecies cannot be recognized independently: a species will either be recognized as having no subspecies at all or at least two (including any that are extinct). In zoology , under the International Code of Zoological Nomenclature , the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology , under the International Code of Nomenclature for algae, fungi, and plants , other infraspecific ranks , such as variety , may be named. In bacteriology and virology , under standard bacterial nomenclature and virus nomenclature , there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether to recognize a subspecies or not
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Habitat
A HABITAT is an ecological or environmental area that is inhabited by a particular species of animal , plant , or other type of organism . The term typically refers to the zone in which the organism lives and where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population . A habitat is made up of physical factors such as soil , moisture , range of temperature , and light intensity as well as biotic factors such as the availability of food and the presence or absence of predators . Every organism has certain habitat needs for the conditions in which it will thrive, but some are tolerant of wide variations while others are very specific in their requirements
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Threatened Species
THREATENED SPECIES are any species (including animals , plants , fungi , etc.) which are vulnerable to endangerment in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation , a mathematical measure of biomass related to population growth rate . This quantitative metric is one method of evaluating the degree of endangerment
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Endangered Species
An ENDANGERED SPECIES is a species which has been categorized as likely to become extinct . Endangered (EN), as categorized by the International Union for Conservation of Nature
International Union for Conservation of Nature
(IUCN) Red List , is the second most severe conservation status for wild populations in the IUCN's schema after Critically Endangered (CR). In 2012, the IUCN Red List
IUCN Red List
featured 3079 animal and 2655 plant species as endangered (EN) worldwide. The figures for 1998 were, respectively, 1102 and 1197. Many nations have laws that protect conservation-reliant species : for example, forbidding hunting , restricting land development or creating preserves. Population numbers, trends and species' conservation status can be found in the lists of organisms by population
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Chukotko-Kamchatkan Languages
The CHUKOTKO-KAMCHATKAN or CHUKCHI–KAMCHATKAN LANGUAGES are a language family of extreme northeastern Siberia
Siberia
. Its speakers traditionally were indigenous hunter-gatherers and reindeer-herders. Chukotko-Kamchatkan is endangered . The Kamchatkan branch is moribund , represented only by Western Itelmen , with only 80 elderly speakers left (as of the 2010 Russian census
2010 Russian census
). The Chukotkan branch had close to 7,000 speakers left (as of 2010, the majority being speakers of Chukchi ), with a reported total ethnic population of 25,000. While the family is sometimes grouped typologically and geographically as Paleo-Siberian , no external genetic relationship has been widely accepted as proven. The most popular such proposals have been for links with Eskimo–Aleut
Eskimo–Aleut
, either alone or in the context of a wider grouping
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Hudson's Bay Company
The HUDSON\'S BAY COMPANY (HBC; French: Compagnie de la Baie d'Hudson), commonly referred to as THE BAY (LA BAIE in French), is a Canadian retail business group. A fur trading business for much of its existence, Hudson's Bay Company
Hudson's Bay Company
owns and operates retail stores throughout Canada, Belgium, Germany, and the United States with Galeria Kaufhof , Gilt , Hudson\'s Bay , Home Outfitters , Lord the retail era had begun as the HBC began establishing stores across the country. In July 2008, HBC was acquired by NRDC Equity Partners , which also owns the upmarket American department store Lord & Taylor . From 2008 to 2012, the HBC was run through a holding company of NRDC, Hudson\'s Bay Trading Company , which was dissolved on 23 January 2012
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Fort Vancouver
FORT VANCOUVER was a 19th-century fur trading post that was the headquarters of the Hudson\'s Bay Company 's Columbia Department , located in the Pacific Northwest
Pacific Northwest
. Named for Captain George Vancouver , the fort was located on the northern bank of the Columbia River
Columbia River
in present-day Vancouver, Washington
Vancouver, Washington
. The fort was a major center of the regional fur trading. Every year trade goods and supplies from London arrived either via ships sailing to the Pacific Ocean
Pacific Ocean
or overland from Hudson Bay
Hudson Bay
via the York Factory Express
York Factory Express

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California Academy Of Sciences
The CALIFORNIA ACADEMY OF SCIENCES is a natural history museum in San Francisco, California
California
, that is among the largest museums of natural history in the world, housing over 26 million specimens. The Academy began in 1853 as a learned society and still carries out a large amount of original research, with exhibits and education becoming significant endeavors of the museum during the 20th century. Completely rebuilt in 2008, the building covers 400,000 square feet (37,000 square metres ) and is among the newest natural history museums in the United States
United States
. The primary building in Golden Gate Park reopened on September 27, 2008
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