Besides the white belly, frogs have yellowish-green heads and backs with some dark brown markings, and some have three white marks on their backs.

Types of Frogs:

Frogs are also known as Field Frogs, Field Frogs. Frogs are amphibians and there are about 190 species. Among them, the widely distributed and more numerous is the black-spotted frog, followed by the zephyr frog, money frog, tiger mosquito frog . Forest Frogs, Horned Frogs, Bullfrogs, Bearded Frogs, Emei Tree Frogs, Bouncing Frogs, Flying Frogs, Spotted-Legged Tree Frogs, Floating Frogs, Hime Frogs, Flower-backed Toads, and Rain Frogs and Turbulent Frogs. The Suparta Golden Frog. Red Frog, Narrow-mouthed Frog, Pancake Toad ,Brown Tree Frog, Noodle Sky Tree Frog, Zhuluo Tree Frog, Orange-bellied Tree Frog, Mok's Tree Frog, Emerald Tree Frog, Taipei Tree Frog, Chinese Tree Toad, Gonde's Red Frog, Svenhoe's Red Frog, Ancient's Red Frog, Laduhi's Red Frog, Belted Spotted Frog, and the Little Rain Frog.

Evolution of frogs:

Though there are many types of frogs, they all go through two stages: the juvenile and the adult. The larva is also known as the tadpole. It is in the water, breathes with gills and has a small tail that swims around in the water. Subsequently, it gradually grows limbs, and the tail gradually shrinks and disappears, so it ascends from the water to land and breathes with its lungs.

The frog was the first vertebrate to evolve from water to life on land. Its body structure was not yet well adapted to life on land. For example, its lungs are simple, like a pocket. The oxygen absorbed by the lungs was not enough to meet its needs, so it had to rely on its skin to help it breathe. According to research, frogs take in oxygen through the skin, accounting for about forty percent of the overall oxygen intake. The skin of frogs is bare, not covered by scales or feathers, etc., which can easily dry out and affect breathing, or even cause death. Therefore, in addition to secreting some mucus to keep their skin moist, frogs generally live in a shady, humid environment near water, and often jump into the water in order to keep their skin moist, so that they can breathe easily and maintain a normal life.

Frog food:

Frog per 100 grams of frog meat containing 11.9 grams of protein, fat 0.3 grams, in addition to calcium, phosphorus, iron, vitamin A, B1, B2, niacin and so on. Frog is sweet and cool, non-toxic, can nourish yin and help yang, make up for the deficiency, solve the labor heat, strengthen the spleen and eliminate the accumulation of water and swelling. Frog meat is the most suitable for post-partum weakness.

Benefits of frogs:

The ability of frogs to catch insects is amazing. According to research, a relatively small individual zephyr frog can eat about fifty insects a day on average, and more than two hundred and sixty. If there are one thousand zephyr frogs per acre of paddy field, according to the calculation of each eating fifty insects, you can eliminate 50,000 pests every day, so that you can control the occurrence of pests in the field and the damage. The frog's amazing ability to catch insects is closely related to its well-developed hind legs and the construction features of its mouth, tongue and eyes.

References

Frog (Traditional Chinese Medicine). Baidu[cited 2018-3-7]