Orangutans are animals that are similar to humans in many ways. One similarity is their ability to communicate through language. This ability is being studied in a program at a zoo in Washington, D.C. What is the purpose of this program? How does it work?
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Welcome the sights and sounds of the world with the Footprint Reading Library. This content-based reading series presents fascinating real-world stories in three formats: print, audio, and vid... more