Y'see, this is why The Oatmeal guy is a comic genius. He understands that while "drawing of your mom seducing a bear" is funny, "drawing of your mom seducing a kodiak bear" is hilarious.
Can you elaborate? I don't find his humour overly humourous but each to their own.
Not just a bear. Not a polar bear. Not a brown bear. A kodiak bear. The only thing funnier would be "a 8' tall, ill-tempered, honey-hating, monkey-fighting kodiak bear. Named Maurice."