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Describes four highly intelligent animals: Hans, a clever horse; Alex, a parrot who counts and speaks; Washoe, a chimp who uses sign language; and Betty, a crow who uses tools.
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Catherine Nichols is the author of several nonfiction books for children.
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Book Description Childrens Pr, 2004. Condition: New. book. Seller Inventory # M0516246011
Book Description Children's Press(CT), 2004. Paperback. Condition: New. Seller Inventory # DADAX0516246011
Book Description National Geographic School Pub, 2010. Paperback. Condition: New. Never used!. Seller Inventory # P110516246011