Gorilla Evolution
Gorilla Evolution
The earliest records of primates are
more than 70 million years old. Where the gorilla fits into all
of that has many theories but very little substantial evidence
to back it up. What is believed though is that the great apes
including gorillas broke off from the others about 20 million
years ago. That is why we find vast differences between them.
In fact, gorillas are more closely related to humans in their
genetic make up than many other types of primates out
there.
However, researchers believe that the gorillas developed
into a larger and stronger species. In doing so though they
lost some of the agility that is found with other types of
primates. Many speculate that gorillas may have once had a tail
but that once they evolved to be so large their bodies were too
heavy for them to swing from trees so they really no longer had
any use for it. Balance was another reason for the tail but as
they evolved they were able to balance without it.
Instead they started to swing with their powerful arms when
they needed to. This need is why they have arms that are longer
than their legs. These longer arms help them to move quickly as
well as to keep their balance. While they can walk in an
upright position it is slow and clumsy to them. They prefer to
walk on all fours with their knuckles being the point for the
balance and for the weight of their movements.
It is believed that gorillas actually evolved from
chimpanzees more than 7 million years ago. This information is
based on remains that have been found as well as DNA testing on
those remains. It may surprise you to learn that the
information we do have about evolution for gorillas has only
came about over the past 30 or so years.
Not everyone is convinced of some of the information out
there. It is hard to swallow the thought that gorillas were
once very small and even similar in many ways to rodents. Yet
that is what some research is telling us based on remains
dating more than 70 million years ago that were found in
Montana. Others are more confident that there were early apes
that the gorillas are decedents of.
There is evidence to suggest that gorillas were once only
one species. However, due to the volcanic action and the fact
that they don’t like water, they were cut off from each other
into separate areas. Over the long period of time they were
found to be genetically different in enough ways which is why
they are considered to be two different species. However, both
of the species have many similarities that make them closely
related.
Of course the issue of gorilla evolution can’t be discussed
without the ever hot topic of debate – did humans evolve from
gorillas as Darwin stated in his theory? There is certainly
plenty of evidence to indicate that is true. After all the DNA
of man and of gorillas is 98% the same. Hopefully we will one
day have the technology to put this debate to rest and to have
the answer to that question beyond the shadow of a doubt.
Even though we do have some basic information about gorillas
and the evolution process, there is so much we still have to
figure out. Right now though most of that research has been
placed on hold. Experts agree that their attention needs to be
focused on helping to ensure the gorillas don’t become extinct.
That is a very consuming job and one that we hope to see plenty
of positive results from in the future.
|