Over the past four decades, Doug, a resident of Tulsa, Oklahoma, acquired his collection of rhinoceros-horn libation cups at great personal cost, maxing out credit cards and curtailing vacations ...
Learn how researchers tested a cow’s behavior and what her tool use reveals about animal intelligence.
New Caledonian crows and kea parrots can learn about the usefulness of objects by playing with them -- similar to human baby behavior. Researchers have discovered that New Caledonian crows and kea ...
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