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Most genes don't change very much at all, even the body-plan genes seem to be very similar in the mouse and blue whale.
Of course, proponents of the Extraterrestrial Hypothesis would have us believe the Grays are an alien species that has, despite all odds, evolved into a caricature of the human body-plan.
For the same reason, the journal will not publish a rebuttal to the thesis of the paper, the superiority of intelligent design ID over evolution as an explanation of the emergence of Cambrian body-plan diversity.
This provides important evolutionary information, revealing much earlier origins of modern octopuses and their characteristic eight-legged body-plan, Fuchs said.
When did octopuses acquire their characteristic body-plan, for example?
Even if you have never encountered an octopus in the flesh, the eight arms, suckers, and sack-like body are almost as familiar a body-plan as the four legs, tail and head of cats and dogs.