Adaptation
Any alteration of an original to fit or serve the same or a different purpose. An adaptation should add something to the content of the original, otherwise it is a copy.
A biological adaptation is an inheritable characteristic of an organism that increases its reproductive success. Within the context of the biology of the eye, it refers to its capability to adapt to different levels of light.
An adaptation is work whose theme, story, or structure is based on another work, sometimes transformed for the medium. For example, the works of William Shakespeare have been the source for several adaptations.
Adaptation was also the title of a movie starring Nicolas Cage and Meryl Streep released in 2002.
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