Page 71 - The Evolution Impasse 2

Narrow Population 69

NARROW POPULATION ing and giv ing rise to new spe cies,
nar row pop u la tions ac tu al ly cause
One of the views held by the pro -
se vere ge net ic im pair ments, since in -
po nents of punc tu at ed ev o lu tion is
di vid u als must con stant ly re pro duce
the con cept of nar row pop u la tions.
with in a re strict ed gene pool. As re -
This pos tu lates that new spe cies
sult, nor mal ly het er o zy got ic in di vid u -
form in com mu ni ties con sist ing of
als be come in creas ing ly ho mo zy got ic.
very small num bers of an i mals or
Impaired or de fective genes, nor mal -
plants. According to this claim, pop -
ly re ces sive be come dom i nant, and
u la tions con tain ing large num bers of
the pop u la tion suf fers in creas ing ge -
an i mals ex hib it no ev o lu tion a ry de -
net ic dis eas es. 67
vel op ment, but re main in a state of
In or der to in ves ti gate this, one
sta sis. However, small groups that
study on chick ens was con duct ed
sep a rate from this pop u la tion and
over 35 years. Chickens kept in a
be come iso lat ed (gen er al ly be cause
nar row pop u la tion were seen to be -
of ge o graph i cal con di tions), will re -
come ge net i cal ly weak en ed. Egg
pro duce sole ly among them selves.
pro duc tion fell from 100% to 80%,
Macro-mu ta tions then oc cur in these
and re pro duc tion lev els from 93% to
groups and rap id spe ci a tion takes
74%.
place.
However, this ge net ic re gres sion
Proponents of punc tu at ed equi -
was halt ed through con scious hu -
lib ri um in sist on the con cept of nar -
man in ter ven tion. When chick ens
row pop u la tions sim ply be cause
were brought in from oth er re gions
they can not ac count for the lack of
and the aug ment ed chick en pop u la -
any ev i dence in the fos sil rec ords.
tion re as sumed nor mal trends. 68
That is why they im ag ine that ev o lu -
This and sim i lar find ings show
tion a ry chan ges took place very rap -
that the claim of punc tu at ed ev o lu -
id ly and in nar row pop u la tions, for
tion—that nar row pop u la tions are
which rea son no fos sil tra ces have
the source of ev o lu tion a ry de vel op -
been left be hind.
ment—has no sci en tif ic va lid i ty. (See
In re cent years, how e ver, sci en tif -
The Punctuated Evolution Model.)
ic ex per i ments and ob ser va tions
have re vealed that nar row pop u la -
tions are a dis ad van tage rath er than
an ad van tage. Rather than de vel op -

Harun Yahya - Adnan Oktar