If plants original form for strategical term of survival, in probability of survival crisis according to claim the condition, plants consequently with natural selection, gregarious alival form was obliged to select for them, necessarily it's allegory, in fact, the plants were obliged to be selected into gregarious survival form. And necessarily they rather need no brain, because they are fundamentally easily prosperous at the best condition for prosperity of gregarious term, though they need only easily extirpated and easily get prosperous relatively again and the turn was fixed at some term for necessity to settle one species, consequently.  Because it must have been natural selective necessary process.

On the other hand, Homo sapiens was not that selected process attending species as creature. Because they had been in terms of survival selected as settling down on one relatively stably survival possible area and afterward they did so, in long period, some another harsh conversion of climate condition was coming to them, with those circumstance, several first species unit was exterminated consequently, only survived unit was consequently completing own stable survival selective method, and that was our own ancestors.
First our human's form attending ancestors had two hands and two feet, and it had been derived from already over progressed intelligence already had discovered first assasination, it could be Cain's appearance, as our for the present definitive interpreted name, that miserable generation was necessarily for plants nothing to do with them, because they were originally never capable for protecting their own survival form by themselves, though necessarily they had never necessarily no hands or progressed brain for doing so at their own preventive survival from other species, anything in survival was never made by themselves, they only had been according to nature condition and got prosperous and exterminated, necessarily species birth issue was another phase accident. 

Meanwhile, to human as us of Homo Sapiens, words usage as language communication was acquired at each individual body, that could have been caused from at some period, first assaination to other body was done by one so called "Cain" one, and once that case was shown, that iterating cases could have been made in turn. 
Necessarily, words communication was not only stipulating of unit order sustenance but also only conspiratory betrayal intention abiding murdering case, as assasinating act justificable reason. 

Certainly, for Cain, first their very older ancestors were taking four feet walking, but that formed appearance certainly inconvenient for murdering as killing other individual body at least at instant death confirmable convenience. Because their heads attack was hardly done by so instantly, because they had no method to use their one pair of front hooves. 
After all, now our applying bipedal locomotion had probably been evolved according to self defensive necessity around easily murdering other individual body as instant death consequently dragging the best body form is bipedal locomotive life cycle day by day running necessity to kill unnecessary members. 
Because, quadlepedal locomotion formed assasinators were never easily confirming the target for killing which was easily preventing for the one's life in switching the one's posture making their butts forward for assasinator who tries to assasinate in assaulting one's appearance as forward the one can watch. Nevertheless turned figure target had the one's head more remotely distanced for their (as assasinator's) fore feet as pair of foot right and left, because their head was upper and a little bit protruded to their body direction's forward. straightforward upper of their two forefeet as necessarily as the Beatles' Paul was singing in "Maxwell's silver hammer", if the ideal form for assasinator to kill the aimed assasination's targeted one's head was supposed, necessarily easily attackable ideal form must have been upright bipedal locomotion formed life mode human, because they must have the seriously decisive default at protecting their own life security, because upright bipedal locomotion making form for them always constantly makes their head position easily attacked not only from forward and backward but also any sides could have been easily directly brain containing head at one stroke. 
Certainly quadlepedal locomotion formed human could have been relatively effectively killing target, but that attacking form must have not so always derived at least instant death confirming. Because changed posture with head and butts must derive some moratorium for confirming attacked individual body's sufferable effect. 
Also, at speedily escaping target was possible for protecting their waists or butts some not critical damage as injured degree. 
If first language usage human original species units could have been certainly chronically identified, the ones could have very sophisticated language usage now how for sustaining each unit's trivial community's politically peaceful order, they probably discovered first instant killing method for keeping social peaceful order at eliminating any unnecessary member for unit community's stability. That could have execution method at any form, death by hanging, or like Trotsky  assasinator in Mexico, they must had own some useful execution tool like the form of an ice ax or so.

Assassinated target's own death confirmable probability's preciseness influences war battle watershed for victory in terms of information battle, because almost dying seriously injured one could have been returning the one's home and inform the one's sufferable accidental facts to the one's tribal community's head, war battle consequence decisive factor will be seriously affected, because war must had been from the beginning, information battle for knowing enemy's it replaced with own unit's informative anything in perfectly kept clandestine for unit's survival for the war against enemy. 

Our body is one unit for keeping each of us as a member, belonging, but it's never like gregarious plants. They are easily exterminated by some nature condition, therefore, they are easily planted by nature and each branch has no brain, but we are never different from them. Though, for the time being, if deformed twin was given birth to the ones' family, they need to be separated to each other at human society, because we are never rooted beneath the land surface as in underground soil.
With those conditioned control, we as Homo Sapiens had been given birth as one certain species, though we are for the first time, each individual had one brain, one hart and one totalled body. And what signifies us and our society must have the maximally great significance in terms of Ethology. That was for the first time individually movable, but with evolved degree maximal brain, social order destructing ones were probably not that exceptional, though both successful assasinator gotten into successful assasinator as assasinator could have been partially the next dictator of the territory.
And probably for assasin to persecute dangerous one's life liquidated and for the murdered former wirepuller, one simply made ice ax as the tool probably used to be the simplest and decisively power system easily convertible the most convenient and the strongest arm for any human social unit. 

(Irregularly continued)

Aug. 11th.    2023