... pentadactylus and Rana catesbeiana . Whereas the digestion of rodent meals equaling 15% of anuran body mass generated significant metabolic responses for all species, specific dynamic action was significantly greater for the estivating species. For estivating species,feeding triggered more than a doubling...

... species (Bufo marinus, Ambystoma tigrinum, Rana catesbeiana, Necturus maculosus and Xenopus laevis) . Although urea i /urea e ratios were uniformly close to 1·0, Tamm i /Tamm e ratios correlated directly with the degree of ammoniotelism in each species, ranging from 9·1 (Bufo , 10% ammoniotelic) to 16·7...