Amphibians

Fish , Amphibians and Reptiles Amphibians as Laboratory Animals

Amphibians include over 4,500 species within 3 major lineages---caecilians, salamanders, and anurans (Stebbins and Cohen 1995). These lineages are linked by several unique physiological traits. The most prominent is the indirect lifestyle of many amphibians--the aquatic gillbreathing larval stage and the aquatic or terrestrial lung or skin-breathing adult stage. A second feature of amphibians i...

Invasive reptiles and amphibians.

Although they are frequently lumped together, reptiles and amphibians belong to two very different zoological groups. Nevertheless, one fact is clear: while numerous reptile and amphibian species on Earth are in decline, others have taken advantage of trade or human movements to become established in new lands, adopting different, and sometimes unusual, strategies. The authors have taken a few ...

Mucormycosis of Amphibians

Fears grow for amphibians

Alarm bells have been ringing around the world about the decline in number of many amphibian populations and a new global study deepens concerns about the future of many species. Nigel Williams reports.

Sex Reversal in Amphibians.

Amphibians have been widely used to study developmental biology due to the fact that embryo development takes place independently of the maternal organism and that observations and experimental approaches are easy. Some amphibians like Xenopus became model organisms in this field. In the first part of this article, the differentiation of the gonads in amphibians and the mechanisms governing thi...