Female Birds Boost Up Their Eggs When Hearing Sexy Song 8538
http://www.sciencedaily.com/releases/2006/06/060607171611.htm
by oblio
Thu Jun 8th, 2006 2:31pm
(from #bor)
[score: 2618 | approval: 100%]
The researchers played back attractive ("sexy") songs and less attractive control songs of male canaries to female domesticated canaries. When the females started egg-laying they varied the size of their eggs in the nest according to the attractiveness of the male's song. That is, the more attractive the song, the larger the eggs.
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