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Raven at Yellowstone National Park | Yellowstone National Park/Flickr
Animals

Ravens Ace Intelligence Tests, Exceeding the Skills of Some Primates

New research on animal cognition reveals that these smart birds can barter and plan for future events based on past experiences.

Published On 07/13/2017
2:14 PM EDT
Florida scrub jay | Andy Reago and Chrissy McClarren/Flickr