'Origin Of Language'

Let’s start with the day our protagonists met:
For arguments sake, we’ll call ‘em ‘Alpha’ and ‘Bet’;
Two Neanderthal men at the evolutionary cusp,
form a hunter-gatherer friendship in pursuit of the hunt,
Food is a must, so in tandem they work;
with a mutual trust in an absence of words,
Hands are their first tool, signals made with the fingers,
so an understanding’s asserted to be relayed at a distance;
With a waving of digits and signed interaction,
a basic depiction of what’s required is established,
It’s vital for catching prey – their ordinate nature;
a survivalist tactic to warn them of danger,
Their calls and behaviour grow ever-expressive;
and forge their relationships strength in dependence,
It lends to expression, though their conveyance is blunt,
a succession of gestured sounds made with their tongues;
Replacing the grunts and guttural roars,
they are accustomed to trusting before;
Adjusting accordingly, they share with their group,
the functioning orders of various tools;
The pair of them use this form for announcing,
the areas new food sources are found in;
As more is recounted and usage increases,
it also has grounding in grooming and teaching,
Due to this reason adaptation excels;
in the communicative region they’re creating themselves,
These basic, but central, components combining,
as each stage is essential for homogenising;
The protocol rises, trust’s further cemented,
in a social environment through the emergence of friendship;
Working together authenticated the bond,
as they learn from endeavours, which makes it so strong,
As communication prolongs, so the larynx does in the throats;
and they place an importance on trusting their own,
The hunter’s are vocal in where and when to attack;
as one studies for opening’s they’re aware their enemies have,
The hair descending his back stood as he heard a deafening bellow;
that dared to tremble the canopies with its prevalent echo,
It was meant to let ‘Bet’ know of a new situation;
a threat to the threshold the two were engaged in,
‘Bet’ pursued it to aid him, lengthened his stride;
with no clue what awaited and his chest filled with pride,
He swept at the vines that appeared in his path;
expecting to find a clearing at last,
When the searing impact of a blade struck in his chest;
hand-engineered from a flat stone, just like the hunter possessed,
The blood unrelenting, a sign of abatement;
he looked up to question and eye his assailant,
‘Bet’s life had been taken by his ally and his friend;
with the first lie in creation, ‘Alpha’ brought his life to an end,
The guy he depended on most had attacked;
to try and affect dominance over their pack,
The stone still cold in his hand, he waited in watch;
content with knowing the fact,
the ‘Alpha’ male had resumed his place at the top...