Is China winning the race to the moon, Pig heart transplants, cute aggression, dust is alive, frogs sing in the city and science engineers the perfect christmas tree

Quirks and Quarks

China's race to the moon - their new lander is a small step towards a great leap; A transplanted pig's heart lives for months in a baboon - is a human trial next?; Is that baby so adorable you want to eat it up? You're committing 'cute aggression'; Your dust bunnies are alive but fighting them with antibacterials is a bad idea; Frogs sing a rich song in the city but a simpler tune in the country; Science gets the holiday spirit and produces the perfect Christmas tree; Cognitive abilities vary among humans, is the same true of other species?

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