When Do Monkeys Talk
- Autore: Sharon T. Pochron, Ph.D.
 - Narratore: Highlights for Children
 - Editore: Highlights
 - Durata: 0:02:23
 
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A scientist discovered that monkeys can control the sounds they make--they seem to know when to keep quiet and when to call in the family.
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When Do Monkeys Talk
Durata: 02min