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The Moral Aesop Knew Something About Crow Summary

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The article, "The Moral: Aesop Knew Something About Crows," reveals a better understanding of the intelligence of crows and how their abilities, or lack thereof, relates to humans. The author discussed multiple experiments that were conducted on New Caledonian crows that revealed the limitations on the bird's ability to learn. First, the birds were trained to pick up stones and drop them into a dry tube for a reward. Next, they took Aesop's test in several different situations. From the tests, the birds learned not to drop the stones in a tube of sand with a treat, and they also correctly chose sinking objects rather than floating ones and solid rather than hollow. However, if part of the tube was hidden, then the birds could not learn. They also didn't appear to understand that fewer pebbles in a narrow tube would make the water rise more quickly. They learned two things from these experiments: they weren't just learning abstract rules and the need to see results of the behavior revealed a level of …show more content…

Results from those experiments revealed that absolute brain size was the best predictor of success, even though many would argue that relative brain size is directly related to intelligence. Regardless, humans have quite large brains that allow for higher levels of cognition in comparison to most other animal species. It is interesting that in that very same experiment, elephants only took one of the tests and did quite poorly. If absolute brain size was the only aspect that mattered, then elephants should have done exceptionally well. However, human brains are unique in that the absolute size is quite large in comparison to most other species, they are relatively large in comparison to our own body weights, and humans have a diverse diet that also affects some aspects of cognition as revealed by the significance in the

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