| Gao, Ke-Qin; Shubin, Neil H | "The local distribution and ecology of the plethodontid salamanders of the southern Appalachians" |
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| IUCN Red List of Threatened Species | International Union for Conservation of Nature |
"The feeding system of terrestrial tiger salamanders Ambystoma tigrinum melanostictum baird ".
17| - San Francisco Chronicle, April 20, 1992• "Salamander with a ballistic tongue" | "Direct observation and review of herbivory in Sirenidae Amphibia: Caudata " |
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| - Virtual frog dissection and anatomy• - Short video clips of calling frogs and interviews with scientists about frog issues• Encyclopedia of Reptiles and Amphibians | Volunteer frog and toad monitoring program by National Wildlife Federation and USGS, includes links to frog calls of the United States• Brad Shaffer; Oscar Flores-Villela; Gabriela Parra-Olea; David Wake 2004 |
"Extremely high-power tongue projection in plethodontid salamanders".
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