1. Evolution of antidiuretic hormones and their functions;Sawyer;Am J Med,1967
2. Evolution;Dobzhansky,1977
3. Adaptations of amphibia to arid environments;Bentley;Science,1966
4. Adaptation and Environment;Schmidt-Neilsen,1977
5. Adaptaption in the water economy of some anuran amphibia;Christensen;Comp Biochem Physiol,1973