"Mark Knight" is the editorial cartoonist for the Herald Sun, a daily Tabloid (newspaper format)/tabloid in Melbourne, Australia. Knight was also the last editorial cartoonist for one of the Herald Sun's joint predecessor newspapers, the afternoon broadsheet The Herald (Melbourne)/The Herald

He created Leuk the Duck, short for Leukemia, a mascot for Challenge (foundation)/Challenge, a cancer foundation to provide a visual impetus for kids with cancer. It has consequently been used in all educational material produced by Challenge.

More Mark Knight on Wikipedia.

It's just engineering technical issues at this point.

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To me, it looks like oil coming out of the ground.

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