Living the Scientific Life (Scientist, Interrupted)

Genius Bird

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This interesting National Geographic video shows how Bernd Heinrich designed an experiment to test the intelligence of ravens [2:07].


  1. #1 6EQUJ5
    November 14, 2008

    There is a wild avocado tree on North Garfield Street in Alhambra, California. (The fruits are very small). When the fruits ripen, the ravens come for a feast. They will defend the tree, trying to drive off unwary pedestrians.

    In neighboring San Marino, I’ve seen ravens at a four-way-stop intersection dropping the acorns from live oaks onto crosswalks, but only on the right side of the road. Here is where cars go the slowest as they come to a stop, and then pull away, breaking the acorn hulls. Cars going over acorns at higher speed shatter them, so apparently ravens like their acorn meat chunky style, not creamy.

  2. #2 bob levy
    November 14, 2008

    Thanks for posting this. I remember seeing it on televsion a long time ago and it stuck with me ever since. It’s great to have a copy of it. Thanks again.

  3. #3 Shaheen Lakhan
    December 26, 2008

    Thanks for submitting this post to our blog carnival. We just published the 42nd edition of Brain Blogging and your article was featured!

    Thank you.


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