Looking like a cross between a frog and a lizard, the gray cheek salamander has thin, smooth skin and no lungs.
Looking like a cross between a frog and a lizard, the gray cheek salamander has thin, smooth skin and no lungs. The amphibian breathes through its skin, and to survive it must keep its skin moist. As environmental conditions grow hotter or drier, scientists want to know whether and how these animals can acclimate.
Researchers from Clemson University’s College of Science have shown for the first time that these salamanders inhabiting the southern Appalachian Mountains use temperature rather than humidity as the best cue to anticipate changes in their environment. Significantly, the researchers observed that salamanders actually harness their unique ability to regenerate limbs to rapidly minimize the impact of hot temperatures.
The findings, which are described in the paper, “Thermal cues drive plasticity in desiccation resistance in montane salamanders with implications for climate change,” may have implications for other animals and even plants. The paper was published in Nature Communications on Sept. 9.
A major issue for these salamanders each day is the potentially fatal risk of drying out. Biological sciences associate professor Mike Sears and his research group have shown over the years that these animals tolerate dehydration by regulating their water loss through physiological changes. But the researchers didn’t fully understand how they did that until now.
Read more at Clemson University
Image: New research from Clemson University shows that the gray cheek salamander, which inhabits the Southern Appalachian Mountains, actually harnesses its unique ability to regenerate limbs to rapidly minimize the impact of hot temperatures. (Credit: Clemson Biological Sciences Department, courtesy of Mike Sears)