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Stripeless- tree frog laryngeal sacs |
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Stripeless tree frog (hyla meridionalis) - Laryngeal sacs
"So, folks, finally, after long fights for territory, I got hold of a lily pad! After that ...
... I'll take a deep breath and ...
... let my terrific voice ring out to attract a female!":
"Look how the sound waves are to be seen!":
"We are just great guys, aren't we!?":
"My voice is the most voluminous and also the most beautiful one!":
"What a nonsense! Nobody can reach me!":
February 24 2010
Birgit Kremer