In this article we will discuss about the meaning and types of pademorphosis. Meaning of Paedomorphosis: The phenomenon of attainment of sexual maturity leading to reproduction in an arrested larval stage (pre-adult stage) is called Paedogenesis (Gk. pais; child; morphe form). The term first used by Von Baer (1866). Neoteny (Gk. neos, young, teinein, to stretch), a term first introduced [...]
In this article we will discuss about Amphibians:- 1. Origin of Amphibia 2. Factors that Caused Amphibian Evolution 3. Probable Ancestry 4. Structure of Amphibians 5. Digestive System of Amphibians 6. Respiratory System and Sound Production 7. Circulatory System 8. Nervous System 9. Urinogenital System 10. Reproduction and Development 11. 11. Reasons for Extinction. Contents: Origin of Amphibia Factors that [...]
In this article we will discuss about Neoteny:- 1. History of Neoteny 2. Types of Neoteny 3. Factors 4. Genetics 5. Significance. Contents: History of Neoteny Types of Neoteny Factors for Neoteny Genetics of Neoteny Significance of Neoteny 1. History of Neoteny: Since many years the size difference of the adult and larval phase of spotted salamander was noted. The [...]