This frog is the Exquisite Spike-thumb (Plectrohyla exquisita) frog through its metamorphosis. Is is endemic to Cusuco National Park. Amphibians are terrestrial or semi-aquatic animals but their eggs give birth to larvas that are aquatic. The tadpole breathes under water thanks to gills. At about one month of age, it no longer uses them and breathes through lungs. Some amphibians, such as frogs, can also breathe through skin their. Once out of water, the tadpole loses his tail.