Ichthyo-sapiens.

The human sole (often written soul) is a fish that resides in the mind of homo sapiens sapiens and can sometimes not be spotted --as it is invisible-- floating just above the ground at roughly sandal-height.  It has been classified as a member of the Soleidae family, and, on the North American continent specifically, as belonging to Pleuronectidae because of its tendency to flounder there.  Though invisible, the human sole can be any colour in the spectrum between microwave (ensure it is fully defrosted first, then cook on high for about 2 aeons) to X-ray (very boney, though wonderful ground-up into fishcakes).  My own Grannie's recipe called for pan-frying with a grain of ethically mined Himalayan salt rock, but there are quite likely as many recipes for human sole as there are people to devise and prepare them.  Regardless, this elusive fish can be very difficult to catch, and even harder to kill since it is said to be immortal.

Interestingly, a pictorial representation of the creature has come to be associated with a sub-sect of the Judaic religion whose leader, one J. Christ --who may or may not have claimed to be the son of YHWH-- implored his friends and followers to become "fishers of men".  If this all sounds a little bit like cannibalism, the rest of J's story is most compelling, and may just turn out to be a plea against any such behaviour.  In any case, the crude drawing of the human sole can most often be seen plastered to the rear-end of Oldsmobiles being driven at half the posted speed limit and using the left turn-indicator when turning right on a Sunday morning.   Depictions of the creature with two feet are also extant, but harder to pin down.  The inclusion of feet may be a reference to the human sole's Prehistoric antecedent, or artistic whim:  we may never be able fully to know the whole truth.

Remember, human soles are all around us, floating about, nuzzling newborn kittens, knocking over Jenga towers.  Please watch your step.  These marvellous creatures may be so flat that they only have one side, but they can still feel pain and suffer from abuse.  Consider adopting one as your own.  For pennies a day (an invalid form of currency in most countries) you can enjoy the mind-enhancing, emotion-stabilizing effects of the human sole on your life.