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Invading beetles mummified by stingless bees
17:41 22 December 2009
Australian bees defend their hives from beetle invasion by entombing the attackers in resin
Generosity is natural for kind-hearted people
16:16 21 December 2009 | 41 comments
Generous people aren't fighting the urge to screw others over – the desire for fairness lies in a brain area that controls intuition and emotion