Early bird doesn't always get worm, researcher finds

Competing against older brothers and sisters can be tough work, as any youngest child will tell you. But new research from a biologist at the University of North Carolina at Chapel Hill shows that when it comes to some birds, you should reserve any underdog sympathies for the first born – or rather, first laid – siblings as well.

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<p><a href="http://www.physorg.com/news124538061.html">Early bird doesn't always get worm, researcher finds</a></p> <p>Competing against older brothers and sisters can be tough work, as any youngest child will tell you. But new research from a biologist at the University of North Carolina at Chapel Hill shows that when it comes to some birds, you should reserve any underdog sympathies for the first born – or rather, first laid – siblings as well.</p>