A Strategic Arms Race Among Birds
10,000 Birds
FEBRUARY 18, 2014
This was the idea originally proposed to explain unbelievably huge sexual swellings in primates, to let males know who the females are. Birds (or other animals) need to be whacked on the head with some over the top obvious signal of something important or they won’t notice it. Photo of a Fairy Wren from HERE. Feeney, W. Somveille, M.,
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