ABC News: Top Stories
Nov 22
|12:37
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Nine months is a long time to hang around in the dark. But a new study suggests that fetuses yawn not out of boredom, but because growing is hard work. British researchers used ultrasound scans to catch fetal yawns, a behavior that might be linked...Read more http://feeds.abcnews.com/click.phdo?i=b4fe04c024aec0afa31a76c7aa887169
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