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To human ears, dog whistles only emit a quiet hissing sound. [6] The principal advantage of dog whistles is that they do not produce a loud, potentially irritating noise for humans that a normal whistle would produce and thus can be used to train or command animals without disturbing nearby people.
Night flying restrictions or night-time curfews, [1] including night flight bans, are any regulations or legislation imposed by a governing body to limit the ground-perceived exposure to aircraft noise pollution during the night hours, when the majority of residents are trying to sleep.
A nocturnal house, sometimes called a nocturama, [1] is a building in a zoo or research establishment where nocturnal animals are kept and viewable by the public. The unique feature of buildings of this type is that the lighting within is isolated from the outside and reversed; i.e. it is dark during the day and lit at night .
Indiana-based Envigo agreed to pay $22 million in fines - $11 million of which represented the largest-ever Justice Department fine in an animal welfare case - plus $13.5 million more to support ...
Certain words in the English language represent animal sounds: the noises and vocalizations of particular animals, especially noises used by animals for communication. The words can be used as verbs or interjections in addition to nouns , and many of them are also specifically onomatopoeic .
Westchester County has agreed to temporarily suspend enforcement of its airport-use restrictions against BARK Air, at least until a judge decides whether those restrictions are lawful in the first ...
Three different concepts of "night" are referred to in the Federal Aviation Regulations in the US. These include the periods from sunset to sunrise - used for nav lights,; the end of evening civil twilight to the beginning of morning civil twilight (this is the "standard definition of night", given in FAR Section 1.1) - used for logging night flight,
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