Multimedia Gallery
September 18, 2007
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The California Tiger Salamander, the Barred Tiger Salamander and a hybrid of the two.
The California Tiger Salamander is an endangered species. The Barred Tiger Salamander is an introduced species. Researchers have shown that when the two mate, the hybrid offspring show the lowest death rate of the lot.
Credit: Zina Deretsky, National Science Foundation
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Interbreeding Between Invasive and Native Salamander Species Creates Hardy Hybrids Likely to Replace Parental Populations