please describe their life cycles to me
Most amphibians go through metamorphosis, a process of significant morphological change after birth. In typical amphibian development, eggs are laid in water and larvae are adapted to an aquatic lifestyle.
Amphibian
Most amphibians go through metamorphosis, a process of significant morphological change after birth. In typical amphibian development, eggs are laid in water and larvae are adapted to an aquatic lifestyle. 
when was the australian journal of herpetology published? 1981 what is it about? A scientific journal specialising in herpetology what does this word mean? Herpetology is the branch of zoology concerned with the study of amphibians and reptiles do you know who was the publisher for the journal? The Australian Herpetologists League can you please name any of the authors? Wells and Wellington the branch of science that the journal refers to, how is it structured? The field of herpetology can be divided into areas dealing with particular taxonomic groups such as frogs, snakes, lizards or turtles is there any reference to charles darwin? No you mentioned that the book is concerned with the study of two species, can you please give me examples of the first one. Frogs, toads, salamanders what do they eat? With a few exceptions, adult amphibians are predators, feeding on virtually anything that moves that they can swallow. can you please tell me some of their characteristics? Amphibians require water bodies for reproduction, although some species have developed various strategies for protecting or bypassing the vulnerable aquatic larval stage
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Amphibian [SEP] Life cycle
Most amphibians go through metamorphosis, a process of significant morphological change after birth. In typical amphibian development, eggs are laid in water and larvae are adapted to an aquatic lifestyle. Frogs, toads and salamanders all hatch from the egg as larvae with external gills. Metamorphosis in amphibians is regulated by thyroxine concentration in the blood, which stimulates metamorphosis, and prolactin, which counteracts thyroxine's effect. Specific events are dependent on threshold values for different tissues. Because most embryonic development is outside the parental body, it is subject to many adaptations due to specific environmental circumstances. For this reason tadpoles can have horny ridges instead of teeth, whisker-like skin extensions or fins.