Frogs have four toes in front, five toes in the back, and webbed. On both sides of the frog's head, there are two kinds of small bags that bulge slightly. Frogs often live in rivers, ponds, rice fields and other places. The key is to theme activities in the grass by the river, and sometimes ambush in the water. Most of them go out during the day and at night, taking pests as the dominant food, and also eat some snails, turtles, shrimps, fish and so on. Frogs are amphibians, belonging to Chordata, Amphibia, Anura and Ranidae. There is no tail in adulthood, and eggs hatch from water into tadpoles.
Through gill breathing, through genetic variation, adults generally breathe through lungs and dual-purpose skin. The upper jaw has teeth, usually plow teeth. Chest-shaped, cone-shaped rocking and column-shaped brackets for fixing the transverse process of sacrum; There is no mesenchymal cartilage between the two joints at the ends of fingers and toes. The eardrum is obviously hidden in subcutaneous tissue, and the skin is delicate or warty. Tongue is generally oval, and most of the back is notched.
Sleep! Sleep! My dear baby. Mother gently shook you with her hand, shaking you blue and falling asleep soon. In the dead of night, how warm the quilt is. Go to sleep! Sleep! My dear baby. My father's arm will always protect you. Everything in the world, happiness and all the warmth belong to me. Nurseryrhyme is a short poem with the flavor of national songs, which is mainly accepted by children. This is one of the oldest and most important genre forms of children's novels.
The best way to put your baby to sleep is to sing a lullaby, which is most suitable for babies from zero to 1 year old. Blue swing is different from other music. It is a typical song characterized by promoting sleep, and is generally composed at a swing speed of 6/8 beats. It has a calm melody and a slow sense of rhythm, which makes it easier for the baby to calm down and quickly enter a dormant state.