1. Dr.
Meave Leakey and his colleagues at the National Museum of Kenya unearthed
fossils on 1998 and 1999 in Kenya during field work sponsored by the National
Geographic Society. According to the findings it is belonging to a new genus of
human ancestor, K.enyanthropus platyops.
It is estimated 3.2 to 3.5 million years old.
2. Australopithecus
afarensis or popularly known as Lucy is the partial skeleton discovered in
Ethiopia in 1974. The scientist have believed that Lucy is the
ancestral species but this was changed when the Kenyan fossils(K.enyanthropus platyops) recovered. One distinguishable
feature is the flatter face of K.enyanthropus
than Australopithecus. Hence, Leakey
concluded that there are two lineages existed as far back as 3.5 million years.
3. The
most popular theory about human ancestry in early 1980’s, was that many
scientist and archaeologist have believed that there was a single common human
ancestor, which gave rise to successive species within the past 3 million
years.
4. Leakey’s
discovery could result to paradigm shift for it changed our belief about human
evolution and it requires us to adjust our view about it. The notable changes
or new ideas presented are the following:
a.
two lineages existed as far back as 3.5 million
years
b.
the early stages of human evolution are more
complex
c.
there is no direct competition between K.enyanthropus and Australopithecus for food resource based on the molar teeth recovered
5. Meave
Leakey’s discovery suggests that the truth, that we are believing now about
human evolution is perhaps not the actual truth. Anyway, his discovery is a
great helped to unlocked the mystery of the past especially the human evolution. For
previous years, we encountered Omo 1
and Omo 2 which both discovered in
Ethiopia and we also encountered Australopithecus Ramidus which some scientist thought as the missing link to prove
that we came from the monkey. Now new species was discovered the K.enyanthropus platyphos and proved that
it is different from another species. Perhaps, we will hesitate which fact we
need to believe in, but this discovery is very important to point up and
illustrate the kind of people existed 3 million years ago, their environment
and how they lived and survived.
The Impact Meave Leakey’s Discovery of K.enyanthropus platyops
The
past is really full of mystery and secrets. Sometimes we ask ourselves who are really
our ancestors and how we become what we are now.
Last
1998-1999, Dr. Meave Leakey and his colleagues from the National Museum of
Kenya unearthed fossils belonging to a new genus of human ancestor, the kenyathropus platyops. The world was
shocked to this news as it was published in Nature, one of the prominent
scientific journals. It altered our understanding about human evolution and
offer new theory on how human exist. According to the report, the major
difference between the two is that the Kenyathropus
and Australopithecus show that they
had different diets and could have existed side by side without direct
competition for food resources based on the small molar teeth found. Furthermore,
both tooth size and face shape relate to the way a species chews its food.
The
discovery nullifies the theory of the scientist and archaeologist in 1980’s
that there was a single common human ancestor, which gave rise to successive
species within the past 3 million years. It also suggests the possibility that
there are another species existed prior to Australopithecus
and Kenyathropus that are waiting to be
unearthed by another archeologist or scientist that may result to another major paradigm
shift.
In
other word, looking backward to know our origin is a very difficult task. It is really true that human evolution is a
very complex process and always a debatable topic for more than century.
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