Neoteny is defined as the failure or delay of larva to metamorphose while becoming sexually mature. It is character of some amphibians.   The best example is axolotl larva of Amblystoma. It is aquatic. It has gills. It develops gonads. It lays eggs and attains large size. Amblystoma on the other hand, is terrestrial and without gills. It was considered…

Dictionary: