Country frogs and city frogs

Have you ever been in a crowd and had to yell just so your friends could hear you?  Weren’t you glad when you left that place and could finally talk in a normal voice?  Well, Australia’s brown tree frogs haven’t been able to escape the constant, loud noises of human civilization and it’s not as easy as walking out of the noisy room.  Because they can’t escape the noise, the male frogs have actually changed their mating calls so the females can hear them better.  Whether or not it’s working remains to be seen. The next time you can enjoy some silence, enjoy it and think of the frogs.

Read the full story on NPR’s Web site.

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