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An aquarium is a vivarium of any size having at least one transparent side 
An aquarium (plural: "aquariums" or "aquaria") is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed.
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Aquarium
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Aquarium
An aquarium (plural: "aquariums" or "aquaria") is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aquatic reptiles such as turtles, and aquatic plants. The term "aquarium", coined by English naturalist Philip Henry Gosse, combines the Latin root "aqua", meaning water, with the suffix "-arium", meaning "a place for relating to". The aquarium principle was fully developed in 1850 by the chemist Robert Warington, who explained that plants added to water in a container would give off enough oxygen to support animals, so long as the numbers of animals did not grow too large.
Vivarium
A vivarium (Latin, literally for "place of life"; plural: "vivaria" or "vivariums") is an area, usually enclosed, for keeping and raising animals or plants for observation or research. Often, a portion of the ecosystem for a particular species is simulated on a smaller scale, with controls for environmental conditions. A vivarium may be small enough to sit on a desk or table, such as a terrarium or an aquarium, or may be a very large structure, possibly outdoors. Large vivaria, particularly those holding organisms capable of flight, typically include some sort of a dual-door mechanism such as a sally port for entry and exit, so that the outer door can be closed to prevent escape before the inner door is opened.
Angle of repose
The angle of repose, or critical angle of repose, of a granular material is the steepest angle of descent or dip relative to the horizontal plane to which a material can be piled without slumping. At this angle, the material on the slope face is on the verge of sliding. The angle of repose can range from 0° to 90°. The morphology of the material affects the angle of repose; smooth, rounded sand grains cannot be piled as steeply as can rough, interlocking sands. The angle of repose can also be affected by additions of solvents; if a small amount of water is able to bridge the gaps between particles, electrostatic attraction of the water to mineral surfaces will increase the angle of repose, and related quantities such as the soil strength.
East Bay Vivarium
The East Bay Vivarium is a vivarium located in Berkeley, California in the United States. The store is more than forty years old, the oldest and largest store of its kind in the United States. It sells snakes, lizards and various other reptiles and the supplies to maintain and care for them. The store is open to reptile enthusiasts, hobbyists, and the general public. The vivarium has been deemed a "must-see" by Disney family and the "strangest attraction" in Berkeley by "The New York Times". The vivarium was owned by Ron Cauble. He opened the business in his basement in Oakland, California in 1970.
Basel Zoo
Zoo Basel is a non-profit zoo in the city of Basel, Switzerland. Its official name is "Zoologischer Garten Basel" — or in English: Basel Zoological Garden. Basel residents affectionately call it "Zolli". Its main entrance is just outside Basel's downtown strip of "Steinen" and extends in the Birsig stream valley to Basel's city border with Binningen, Basel-Country. Zoo Basel is Switzerland's oldest (1874) and largest zoo (by number of animals). With over 1.8 million visitors per year, it is the most visited tourist attraction in Switzerland with an entrance fee. Zoo Basel was ranked as one of the fifteen best zoos in the world by "Forbes Traveler" in 2008 and in 2009 as the seventh best in Europe by Anthony Sheridan from the Zoological Society of London.
Cassiodorus
Flavius Magnus Aurelius Cassiodorus Senator (c. 485 – c. 585), commonly known as Cassiodorus, was a Roman statesman and writer serving in the administration of Theoderic the Great, king of the Ostrogoths. "Senator" was part of his surname, not his rank. Cassiodorus was born at Scylletium, near Catanzaro in Calabria, Italy. He began his career as councillor to his father, the governor of Sicily. While still young, he made a name for himself as learned in the ways of law. During his working life he worked as "quaestor sacri palatii" c. 507–511, as a consul in 514, then as "magister officiorum" under Theoderic, and later under the regency for Theoderic's young successor, Athalaric.
Monterey Bay Aquarium
Monterey Bay Aquarium is a nonprofit public aquarium in Monterey, California. The aquarium is known for its regional focus on the marine habitats of Monterey Bay, being the first institution to exhibit a living kelp forest. Its biologists have pioneered the animal husbandry of jellyfish and, , it remains the only public aquarium to have successfully exhibited a great white shark for longer than 16 days. The aquarium participates in various animal breeding programs, publishes scientific research, and hosts and partakes in conferences. Seafood Watch, the aquarium's seafood consumer awareness program, has had an influential role among consumers and businesses in enhancing sustainable fishing practices.