Traditional Culture Encyclopedia - The 24 Solar Terms - What season is when frogs croak?
What season is when frogs croak?
Frog is the messenger of tripterygium wilfordii. The frog crowed and the rain came. The croaking of frogs symbolizes the arrival of the rainy season. Every rainy day, frogs make special noises. Especially when it's about to rain, the frogs' cries are one after another, getting louder and louder, which really seems like a concert. Frogs don't like living in an environment that is too cold, too hot or too dry. They like cool and humid places. When it is about to rain, the frog's skin becomes active because the air pressure drops, the humidity increases and the moisture in the air increases.
Frogs belong to chordates, amphibians, Anura and Ranidae. Adults are tailless, eggs are laid in water, fertilized in vitro, hatched into tadpoles, and breathed through gills. After the mutation, adults mainly breathe through the lungs and skin. The upper jaw has teeth, usually plow teeth. The shoulder strap is fixed on the chest, the vertebral body is uneven, the transverse process of the sacrum is columnar, and there is no mesenchymal cartilage between the two joints at the toe. The eardrum is obviously hidden under the skin, and the skin is smooth or warty. Tongue is generally oval, and there are many notches at the back end.
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