Little green hero, catching pests in the fields, staying out in winter and working hard in summer.

Explanation of the answer:

1, the frog's belly is white, its head and back are yellow-green, and there are some dark-brown markings on its body. Some have three white marks on their backs. The reason why frogs are green is a good disguise. It is almost the same color as the grass in the grass and can protect itself from the enemy. So he is a "little green hero".

Frogs often inhabit rivers, ponds and rice fields, mainly in the grass near the water, and sometimes they lurk in the water. Mostly at night, mainly eating insects, but also eating some snails, snails, shrimps, small fish and so on. Most of the insects they eat are agricultural pests. So he "catches pests in the fields".

3. Frogs When the weather gets cold in late autumn, frogs hibernate at the bottom of the water or in caves, and then return to the water to breed when the weather gets warmer in the following spring, and catch insects most nights in summer. So he said, "Don't come out in winter, work hard in summer."

Frogs usually inhabit rice fields, ponds, ditches or grass by the river, sometimes they lurk in the water and usually hunt at night. It is estimated that a frog can prey on 70 insects a day and kill15,000 pests a year. So frogs are good for agriculture and should be protected.

References:

Baidu encyclopedia-frog