Teleology in biology | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-25

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Teleology_in_biology


00:01:18 1 Context
00:01:27 1.1 Teleology
00:02:24 1.2 Natural theology
00:03:15 1.3 Goal-directed evolution
00:05:02 1.4 Natural selection
00:05:29 1.5 Adaptation
00:07:00 2 Status in evolutionary biology
00:07:10 2.1 Reasons for discomfort
00:09:46 2.2 Removable teleological shorthand
00:11:56 2.3 Irreducible teleology
00:14:43 3 See also



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SUMMARY
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Teleology in biology is the use of the language of goal-directedness in accounts of evolutionary adaptation, which some biologists and philosophers of science find problematic. The term teleonomy has also been proposed. Before Darwin, organisms were seen as existing because God had designed and created them; their features such as eyes were taken by natural theology to have been made to enable them to carry out their functions, such as seeing. Evolutionary biologists often use similar teleological formulations that invoke purpose, but these imply natural selection rather than actual goals, whether conscious or not. Dissenting biologists and religious thinkers held that evolution itself was somehow goal-directed (orthogenesis), and in vitalist versions, driven by a purposeful life force. Since such views are now discredited, with evolution working by natural selection acting on inherited variation, the use of teleology in biology has attracted criticism, and attempts have been made to teach students to avoid teleological language.
Nevertheless, biologists still often write about evolution as if organisms had goals, and some philosophers of biology such as Francisco Ayala and biologists such as J. B. S. Haldane consider that teleological language is unavoidable in evolutionary biology.