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The Birds And The Bees

TED Radio Hour

CHAPTER

Bird Eggs - Size and Survival

The size of an egg is highly correlated with the success of that egg. The ones that are somewhat larger, generally speaking, we can assume that that has more food in there to make for a successful hatching. But sometimes what mums will do for these late laid, smaller eggs is they'll actually load them up with some more androgens or the horbones that help for the chicks to be a little more aggressive.

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