Guess the X Blog, Win A Darwin Coffee Mug

Hurry over while the guessing is still good! A Darwin I Think Mug to the first commenter who correctly identifies the symbolism of the name “The X Blog”


  1. #1 Greg Laden
    September 26, 2011

    SOLVED! Good Job.

  2. #2 StevoR
    September 27, 2011

    Pluto or is that too obvious?