Excessive cogitation causes canary brains to explode, providing much entertainment for small children.
And so it goes. First it was African gray parrots demonstrating they were smarter than elephants. (See video.)
Then it was crows and their ilk displaying foresight and tool-making skills. (Click on photo.)
Now we’ve got bait-fishing herons.
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From The Scientist
Bait use in birds
After reviewing the literature, researchers concluded bait fishing by certain species of herons is a real and distinct behavior. Bait