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Animal testing is widely used to aid in research of human disease when human experimentation would be unfeasible or unethical. [26] This strategy is made possible by the common descent of all living organisms, and the conservation of metabolic and developmental pathways and genetic material over the course of evolution. [27]
Animal testing regulations are guidelines that permit and control the use of non-human animals for scientific experimentation.They vary greatly around the world, but most governments aim to control the number of times individual animals may be used; the overall numbers used; and the degree of pain that may be inflicted without anesthetic.
One of Pavlov’s dogs with a saliva-catch container and tube surgically implanted in its muzzle, Pavlov Museum, 2005. The history of animal testing goes back to the writings of the Ancient Greeks in the 4th and 3rd centuries BCE, with Aristotle (384–322 BCE) and Erasistratus (304–258 BCE) one of the first documented to perform experiments on nonhuman animals. [1]
Animal testing is the use of non-human animals in experiments that seek to control the variables that affect the behavior or biological system under study. Animal testing may also refer to: Alternatives to animal testing; Animal testing on invertebrates; Animal testing on non-human primates; Animal testing on rodents; Animal testing regulations
This is a comparison of English dictionaries, which are dictionaries about the language of English.The dictionaries listed here are categorized into "full-size" dictionaries (which extensively cover the language, and are targeted to native speakers), "collegiate" (which are smaller, and often contain other biographical or geographical information useful to college students), and "learner's ...
Noah Webster's assistant, and later chief competitor, Joseph Emerson Worcester, and Webster's son-in-law Chauncey A. Goodrich, published an abridgment of Noah Webster's 1828 American Dictionary of the English Language in 1829, with the same number of words and Webster's full definitions, but with truncated literary references and expanded ...
WEBSTER ― Webster Animal Control has issued a plea for help after rescuing a dog that was victimized in an animal cruelty case. The dog, named Ziggy, is in need of thousands of dollars worth of ...
A dictionary that is part of a novel, or of fictional media (such as a film, TV show, or game) is a primary source for Wikipedia. However, a dictionary written by a scholar about words invented in a novel or fictional film, TV show, or game may be secondary, provided that the scholar has done an independent analysis and not simply copied the ...