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Article: Garter snakes, newts in genetic war
- Article from:
- Deseret News (Salt Lake City)
- Article date:
- April 11, 2005
- Author:
CopyrightCopyright 2005 Deseret News (Salt Lake City). Provided by ProQuest LLC. (Hide copyright information)
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For years, scientists at Utah State University have been
documenting a "chemical arms race" between normally toxic newts and
the garter snakes that eat them. Now they have discovered the genetic
changes that allow the snakes to evolve molecular defenses against
the poison.
Garter snakes regularly do something you can't -- something that
perhaps no other creature but the snakes can do -- eat a rough-
skinned newt and live. A newt is a member of the salamander order,
and rough-skinned newts are common in West Coast streams.
As garter snakes have raised their chemical defenses, the newts
have become more deadly. According to USU, one newt (scientific name
Taricha granulosa) carries enough ...