World Bytes: Reversing Extinction

By Terrance Malkinson

Advances in genetic engineering are opening up possibilities that were once the stuff of science fiction movies.  A 14 May  World View  column in Nature by Ben Minteer, entitled  Is It Right To Reverse Extinction? [Nature, 509(#7500) pg. 261, 14 May 2014, www.nature.com], examines some of the issues related to the possibility of using genetic engineering and cloning to recreate species that have vanished from the earth � a movement known as de-extinction. A number of animals, including the Passenger Pigeon, Pyrenean Ibex, the Tasmanian Tiger and the Woolly Mammoth, are envisioned as candidates for de-extinction. Proponents argue that such experiments would afford man the opportunity to right past wrongs, restore lost ecological functions, and enhance the diversity of life on earth.  Opponents, however, argue that de-extinction would create conflicts because the animals would be returning to a changed earth, no longer suitable for their needs; and could bring with them risks of new transmissible diseases. The genetically created animals could never be identical to their accessorial predecessors, they contend.

Then there is also the enormous ethical issue of potentially extending the technology to the human species. Minteer concludes that there is great virtue in keeping extinct species extinct, and continues, "we are a species that often becomes mesmerized by its own power.

Engineering is multi-disciplinary, and all engineers as professionals should have an understanding of developments in a diversity of fields other than their own.  The IEEE Society on Social Implications of Technology [https://technologyandsociety.org/] focuses on the effects of technology on people and society, how engineers play a public role, and ethical issues that engineers may face during their careers.

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