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In This Issue
- Disaster Goes Global: The eruption in 1600 of a seemingly quiet volcano in Peru changed global climate and triggered famine as far away as Russia
- Evolution's Ear: Recent changes in hearing-related genes may have influenced language development
- Pop chirp bite crunch chew: The ultrasonic din of dying trees inspires a new kind of research to save forests from beetle attacks — and battle climate change
- This week's table of contents
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Searching Authored by Deborah Blum 
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Animal and human studies suggest that a girl with a twin brother may never completely escape the influence of her opposite-sex womb-mate.Published: May 10th, 2008; Vol.173 #16Found in: Humans
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