Wednesday 5 March 2014

De-Extinction Guide Helps Choose Which Species to Resurrect

By Laura Poppick, Staff Writer | March 03, 2014 05:38pm ET

The idea of bringing extinct species back to life has transitioned from science fiction to near reality in recent years, with some scientists saying the passenger pigeon — a bird that once clouded North American skies but went extinct due to over-hunting in the early 1900s —could reenter the world within the next several years.

But amidst the exciting prospects of seeing these birds take to the skies again, or perhaps one day spotting a woolly mammoth tromp through Siberia, some researchers have urged those involved in so-called de-extinction to carefully consider the ecological risks of reintroducing species to the wild — before choosing to bring back any particular species. Reintroduced species could pose risks by threatening other animals (by preying on them or spreading parasites); endangering humans with physical harm; or jeopardizing aspects of ecosystems humans rely on.


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