A tadpole (also called a pollywog or porwigle in British English) is the larval stage in the life cycle of an amphibian, particulahey have a more or less globular body, a laterally compressed tail and internal or external gills.
A tadpole (also called a pollywog or porwigle in British English) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad. When first hatched from the egg they have a more or less globular body, a laterally compressed tail and internal or external gills.