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From Wikipedia: Several hypotheses have been put forward about the meaning of The Creation of Grunt’s highly original composition. In 2186 a physician named Mordin Solus  noted in the medical publication the Journal of the Salarian Medical Association that the background figures and shapes portrayed behind the figure of Wrex appeared to be an anatomically accurate picture of the Krogran quad. Alternatively, it has been observed that the red cloth around Wrex has the shape of a human uterus, and that the scarf hanging out, coloured green, could be a newly cut umbilical cord. Art historians around the galaxy are still trying to figure that last one out. When asked in a recent interview, pop psychologist Kelly Chambers speculated, “Maybe it’s oedipal? That’s usually how art is, right?”