Croak to croon: City frogs sing more alluring love songs

WASHINGTON (AP) — A new study finds that city frogs and rainforest frogs don’t sing the same tune.

Monday’s study in Nature Ecology & Evolution looked at Panama’s tiny tungara frogs.

They don’t croak like American bullfrogs. Their pings sound more like a high-pitched, video-game beep. But to female frogs, it sounds like pillow talk.

Researchers found the urban frogs call faster, more frequently and add more embellishments compared with those in the forest.

And those fancy urban love songs are three times more likely to attract female frogs.

In the rainforest, the frogs must balance two goals: attracting a mate and staying safe. In the city, there are no frog-eating bats, and far fewer snakes and midges.

As lead author Wouter Halfwerk says: “An urban male can take greater risks.”

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