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Thursday, July 28, 2011

amphibian metamorphosis

at first, an adult female frog will lay eggs, then eggs will hatch after 10 days. After hatching, the eggs hatch into Berudu.berudu frogs live in water after 2 days old, tadpoles have external feathery gills for breathing. After 3 weeks of age the gills of tadpoles will be covered by skin.

Towards the age of 8 weeks, tadpoles back legs will be formed later enlarged when the front legs began to emerge. Age 12 weeks, the front legs began to take form, not function anymore ingsang be a short tail and breathe with lungs paru.maka shape of the face will be clearer after the growth of perfect limbs, the frog will turn into adult frogs and kmbali breed.

There are several different things from the cycle of amphibians in general. Some species of salamanders do not need to be morphed to become fully sexually mature, and will only metamorphose under certain environmental conditions in the pressure. Many species of tropical frogs lay their eggs on land, where the tadpoles metamorphose within the egg. When they hatch, they become adults who are not really mature, sometimes still has a tail that within a few days later reabsorbed.

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