Halverson entertainingly introduces some of the most tangled questions in conservation biology: What is a species? What is native? What is natural? What is wild?
– Science, April 2, 2010

With prose as engaging as it is thoughtful, Halverson has crafted an absorbing cautionary tale of ecological trial and error, documenting our tardy but increasing understanding of biological interdependence and its immeasurable value.
– Washington Post, February 28, 2010

This isn’t one of those books that only fly-fishermen will like. An Entirely Synthetic Fish is a compelling cautionary tale about how the systematic introduction and massive cultivation of rainbow trout for fishing changed America’s waterways, both for better and for worse.
– Outside, December 2010