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shigeta earned this badge 8 times |
apr 23 at 14:33
Why are there no wheeled animals?
oct 17 at 6:16
Why can't humans drink sea water?
jun 5 '12 at 14:59
Is kissing a natural human activity?
mar 24 '12 at 1:35
How does “be altruist to those who are similar to you” evolve?
