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Oral history is both the oldest type of historical inquiry, predating the written word, and one of the most modern, initiated with tape recorders in the 1940s and now using 21st-century digital technologies.In Donald Ritchie explains, “Oral History collects memories and personal commentaries of historical significance through recorded interviews.Curtilage can be defined, for the purposes of the listed building legislation, as an area of land around a listed building within which other buildings pre dating July 1948 may potentially be considered listed. With those that do there will be cases where the extent of the curtilage will be clear (such as a garden boundary) but in others it may not be as clear each case will always be a question of fact and degree.
Of course, the natural world is full of adaptations but it is also full of traits that are not adaptations, and recognizing this is important.
It is not enough to know that the feature is functional right now.
We want to know what was happening when it first evolved, which often involves reconstructing the phylogeny of the organisms in which we are interested and determining the likely ancestral states of the characters.
Based on this definition we can make specific predictions ("If X is an adaptation for a particular function, then we'd predict that...") and see if our predictions match our observations.
As an example, we'll consider the hypothesis: feathers are an adaptation for bird flight. There are several relevant lines of evidence that must be examined: We could do experiments to test each of these criteria of adaptation.
Did feathers arise in the context of natural selection for flight?