Add Yahoo as a preferred source to see more of our stories on Google. Mountain chickadees are unusual in having more complex calls than songs. Vladimir Pravosudov I approach a flock of mountain ...
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Survive or starve: How chickadees rewrite their brains each winter
Quick Take Chickadees replace 30 percent of their old neurons to make room for new memories in their hippocampus. The expansion of the hippocampus is one of the most impressive aspects of any bird.
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