This Week in Discovery News we look at the dark side of Valentine's Day, the dirty sex lives of some of our favorite scientists and mysterious sounds being heard across the planet…
STORY LINKS:
Secret and Sordid Sex Lives of Scientists: Photos
http://news.discovery.com/history/scientists-sex-lives-121302.html
The Seedy, Scandalous History of Valentine's Day
http://news.discovery.com/history/history-valentines-day-121302.html
Mysterious Sounds Reported Around the World
http://news.discovery.com/human/mysterious-sounds-reported-around-the-world-120208.html
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