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Darwin

  • The Dahlia Dell in Golden Gate Park.
    Mexican Transplants
    LuAnn Johnson
    English Lord Holland wrote a poem about his wife who got dahlia seeds from Madrid (via the New World): “The dahlias you brought to our isle, your praises forever shall speak; mid gardens as sweet as your smile, and color as bright as your cheek."
  • In the Sub-Antarctic Islands, the wind is so strong that insects can't fly. (Wikimedia Commons)
    Flight Loss
    Walker Rhea
    Most insects fly—but, across millennia, many species have lost the ability. Island dwelling insects have been especially prone to this evolutionary trend.