- A chimpanzee at a Swedish zoo is stockpiling rocks in the morning in order to throw them at visitors later in the day. Is this evidence he's planning for the future?
- For those guys thinking about waiting to have kids, there may be an intellectual cost. According to some Australian researchers, a child born to a 50-year-old father has 2 IQ points less than a child born to a 20-year-old man.
Tuesday, March 10, 2009
Two recent New Scientist articles
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