Batrachians

Batrachians is a term sometimes used to refer to amphibians, particularly frogs and toads. The word derives from the Greek word "batrachos," meaning frog. While not a formal taxonomic rank, it is a descriptive term often encountered in older literature or in general discussion about these animals. Amphibians are a class of ectothermic, tetrapod vertebrates that are characterized by their permeable skin and a biphasic life cycle, typically involving aquatic larvae that metamorphose into terrestrial adults. This group includes frogs, toads, salamanders, newts, and caecilians. The term "batrachian" specifically emphasizes the frog-like members of this class. Their ecological role is significant, often serving as indicators of environmental health due to their sensitivity to pollution and habitat changes. They play a part in food webs as both predators and prey.