The theory of the initial bipédie proposes that the first Mammifères were originally Bipède S.

This anatomical character was maintained in the human line, while the majority of the other lines, including that of the Singes, developed a mode of locomotion quadruped. The ancestor common to all was biped, and related to a marine habitat. With the difference in the current paradigm dominating, which is based on the data of the Paléontologie, the theory of the initial bipédie is based mainly on the Embryologie and the Comparative anatomy. It is about a zoological theory , as well as the theory of constructions of the professor Wolfgang F. Gutmann.

At the Vertebrate embryos of , plus the developmental stages is early, plus those resemble itself. A standard character, that of the round famous person, is regarded as original, just like the driving position of the body. In the evolution of the terrestrial forms, the selected mode of locomotion was quite naturally biped walk, this is why one speaks about bipédie initial . The very first Mammifères was bipeds, closer to the current man by their anatomy, than of the contemporary animals. The Quadrupédie (or walk with four legs ), as for it, is regarded as a derived feature, at the terrestrial mammals and the others Vertébrés.

The theory of the initial bipédie was formulated as of the years 1920 by the German professor of anatomy Dr. max Westenhöfer like, independently, by the Belgian zoologist of Russian origin Dr. Serge Frechkop. The theory was included in the years 1950 by the Franco-Belgian zoologist Dr. Bernard Heuvelmans as bases its theory of the Déshominisation . This research was continued in the years 1980 by the Franco-German ichtyologist François of the Saar, which added to it its Hypothèse of the marine Homoncule , ancestor common to all the vertebrate ones, who lived originally in the oceans. Just like a jellyfish, this organization swam in driving position . Brain current of Man was origin body of floating which filled of gas, which conferred its round form to him, and allowed the verticality body. Thus the former swimming pallets - our future hands - remained free to seize; the human hand is primitive - not specialized - as it was it at the time of the Vertebrate antiquated ones.

A logical consequence of the theory of the initial bipédie is that the series of our ancestors : Homo habilis , Homo ergaster , Homo erectus , etc, represents actually specialized men resulting from our ascent, while Homo sapiens remained itself not specialized. That leads us to also evoke the Cryptozoologie, which studies certain legends and the reports/ratios of eyewitnesses on hidden animal species. Just like small the Homo floresiensis , gone back to 18.000 years, which one has just discovered on the island indonésienne Flores, certain groups of Hominidés, which one wrongly describes as primitive , could well survive until our days.