By A Mystery Man Writer
You can tell how close penguins are to each other by how similar their voices are.
Penguins adapt their voices to sound like their companions - new study
Penguins can adapt their voices to sound like their friends
We Helped Scientists Track Birds This Summer. - The New York Times
Penguins perceive variations of source- and filter-related vocal
Penguins - Noticias, Investigaciones y Análisis - The Conversation
Africa: Penguins Adapt Their Voices to Sound Like Their Companions
Penguins adapt their accents to sound more like their friends
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