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A change in structure, function, or behavior by which a species or individual improves its chance of survival in a specific environment. Adaptations develop as the result of natural selection operating on random genetic variations that are capable of being passed from one generation to the next.
By Jennifer Kennedy. Definition: An adaptation is a physical or behavioral characteristic that has developed to allow an organism to better survive in its environment.Adaptations are the result of evolution, and may occur when a gene mutates, or changes by accident.xamples: One physical adaptation used in the intertidal zone is a crab's hard shell, which protects it from predators, drying out and being crushed by waves. A behavioral adaptation in the oceans is the use of loud, low-frequency calls by fin whales to communicate with other whales over great distances.