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 How Do Frogs Croak?

How Do Frogs Croak?
Reading Level
     edHelper's suggested reading level:   grades 4 to 6
     Flesch-Kincaid grade level:   4.95

Vocabulary
     challenging words:    peepers, roar, ultrasound, species, rainforest, windpipe, mainly, impressive, upper, male, vocal, among, ability, natural, such, particular

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How Do Frogs Croak?
By Sharon Fabian 		  
1     Lions roar. Birds sing. Frogs say, "Ribbit, ribbit." Did you ever wonder why or how they make such unusual sounds?
 
2     Of course, frogs don't all sound the same. Small frogs produce a high, chirping sound, while large bullfrogs produce a deep, bass note that can be heard as far as a mile away. But all frogs produce their croaking sounds for the same reasons.
 
3     The main reason is to attract a mate. Male frogs sound off to attract female frogs. When female frogs hear a chorus of croaks echoing around the pond, they know that male frogs are there, too. Then each female can make her choice of a good mate by listening to the differences among all of the voices around the water.
 
4     Male frogs also croak to claim their territory. A croaking sound warns other males that a particular spot on the pond is already taken.

Paragraphs 5 to 11:
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