Koko the gorilla was one of the first animals to learn to communicate with human beings. Scientists taught Koko _________ _______________. That is a way to talk with your hands.
sign language
A pet dog, Betsy, is a clever border collie. She had shown amazing skill at understanding language and pictures. When someone shows her a picture of an object, what does she do?
She goes and fetches that object.
Alex is an African gray parrot. A scientist showed Alex a green cup and green key. Q: What is the same about the object? Alex:_________. Q:What is different? Alex:__________.
Color / Shape
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