When the warmer weather arrives, male frogs attempt to attract a mate with a spring song. The frogs normally perform in singing. The one who starts each round usually has the deepest voice. The "vocal sacs" under their mouths allow the frogs to "sing". They fill their vocal sacs with air until they look like a balloon, and then they let out a "peep" as they release the air. They "peep" about once every second. These sounds can often be heard as far as a half-mile away
After a female and male peeper mate, the female lays her eggs in water and spends the remainder of the year in the forest. During the winter, they sleep under logs or behind loose bark on trees. The music dies down during the cold months, but the sounds of peepers will soon be heard again, sounding the coming of spring.
5. The text is written mainly to _____.
A. tell people what spring peepers look like
B. let people know more about spring peepers
C. explain why spring peepers sing
D. show environmental harmony in nature
6. What can we know about the spring peepers from the text?
A. They prefer to live in the dry areas in North America.
B. They are the first animals to make sounds in spring.
C. They can live both in water and on land.
D. They are active during the cold months of the year.
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