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Poshpaws earned this badge 6 times
oct 11 at 4:19What is the lowest pressure at which plants can survive?
aug 20 at 21:54When did vision evolve for the first time?
aug 12 at 20:35How do fairy rings propagate?
jun 24 at 0:04Are single-celled organisms capable of learning?
jan 15 '12 at 15:21Is there a reason why human eyesight and plants make use of the same wavelength of light?
dec 21 '11 at 2:51Life without DNA?