Indeed, the following morning I stayed in bed a la Descartes for about an hour, thinking of the chicken-egg antithesis... To my mind came the memory of an article I had read the previous day, which dealt with a bacterium that had suffered a mutation, so that it divides by creating another one, but...the new one remains attached! Filaments are formed in that way, and they start to entwine and entwine... (gives me the creeps...). Physicists galore are busy studying the force that guides those movements.
And then, that 'chick' became amphibian, and then terrestrial, and finally ended as a chicken... Preposterous? Then you, my dear friend, do not know that there, at the vents, live giant worms which have no intestinal tract because in that absolute lack of solar energy they thrive on the energy of a supernova which exploded some five billion years ago, take a cappala' years more or less! And they do so because bacteria of the genus archea transfer the thermic energy of the vents into chemical energy, which then is transfered to the miserable worm...
Well, problem solved like that! (snap). Obviously, the pristine chegg, as it is nowadays called, was created in a water medium, being therefore leg-less. Have anyone of you seen under the microscope an intestinal parasite in the act of laying egg after egg after egg? I bet there is going to be discovered at a vent site at the bottom of an ocean a relic of a parasite that first evolved as an egg, which hatched into a leg-less 'chick' which later-on, by dint of more mutations, ended up incorporating an egg so successfully that the obsolete cheggs just went the way of all cheggs!