An historical example of teleology in scientific work:
"WHEN we trace the parts of which this terrestrial system is composed, and when we view the general connection of those several parts, the whole presents a machine of a peculiar construction by which it is adapted to a certain end. We perceive a fabric, erected in wisdom, to obtain a purpose worthy of the power that is apparent in the production of it.
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IN this manner, also, will easily be explained those natural appearances which diversify the surface of the earth for the use of plants and animals, and those objects which beautify the face of nature for the contemplation of mankind. Such are, the distinctions of mountains and valleys, of lakes and river, of dry barren desarts [sic] and rich watered plains, of rocks which stand apparently unimpaired by the lapse of time, and sands with fluctuate with winds and tides. All these are the effects of steady causes; each of these has its proper purpose in the system of the earth; and in that system is contained another, which is that of living growing bodies, and of animated beings."
James Hutton (1788) Theory of the Earth
Today, scientists generally avoid suggesting there is a purpose in nature. However, at the time he was writimg Hutton's ideas (about the earth as an integrated system formed by cyclic changes over ver long timescales) were accused of reflectng atheism (at a time when theism was the norm, and when Hutton himself claimed to be a believer in a creator God.)
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Indeed, today it is normally considered proper by most scientists to avoid references or allusions to God in their scientific work, but this was not always the case.
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