A 2005 molecular phylogeny, based on rDNA analysis, suggests that salamanders and caecilians are more closely related to each other than they are to frogs. Source: Internet
Adverse effects This chart shows that not all fish, shellfish, or the insects that they eat can tolerate the same amount of acid; for example, frogs can tolerate water that is more acidic (i. Source: Internet
A distress call, emitted by some frogs when they are in danger, is produced with the mouth open resulting in a higher-pitched call. Source: Internet
Almost all of these frogs live in wet tropical rainforests and their eggs hatch directly into miniature versions of the adult, passing through the tadpole stage within the egg. Source: Internet
Also reliant on these trees for habitat protection are the indicator species: spotted salamander, blue-spotted salamander, and wood frogs. Source: Internet
Amphibians The axolotl (Ambystoma mexicanum) retains its larval form with gills into adulthood The lungs of most frogs and other amphibians are simple and balloon-like, with gas exchange limited to the outer surface of the lung. Source: Internet