May 18, 2006

fucked by chimps ???


hey fellahs

them old gals of ours weregettin it regular

from .......monkeys
and

christ ......gettin' knocked up too


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Boston scientists
released a provocative report yesterday
that challenges
the timeline of human evolution
and suggests that human ancestors
bred with chimpanzee ancestors
long after they had initially
separated into two species "

=========================================

"The researchers
working at the Cambridge-based
Broad Institute of Harvard and MIT
used a wealth of newly available genetic data
to estimate the time
when the first human ancestors
split from the chimpanzees"


" The team arrived at an answer
that is at least 1 million years later
than paleontologists had believed,
based on fossils of early,
humanlike creatures "

"The lead scientist said
that this jarring conflict
with the fossil record
combined with a number
of other strange genetic patterns
the team uncovered
led him to a startling explanation:
that human ancestors evolved
apart from the chimpanzees
for hundreds of thousands of years
and then started breeding
with them again before a final break"

"Something very unusual happened "

"The suggestion of interbreeding
was met with skepticism by paleontologists
who said they had trouble imagining
a successful breeding between
early human ancestors
which walked upright
and the chimpanzee ancestors
which walked on all fours"

" But other scientists said
the work is impressive
and will probably force a reappraisal
of the story of human origins"

"The new report
estimates that final break between
the human and chimpanzee species
did not come until 6.3 million years ago
at the earliest
and probably less than 5.4 million years ago"

"This contradiction could be resolved
if early homonids like Toumai
interbred with chimpanzee ancestors
leaving a population of hybrids
that developed into today's humans"

"The work will also probably inspire
biologists to devote more attention to hybrids
the term for offspring with parents of different species
and the role that they may play
in fueling evolution"

" The Nature paper joins a wave
of work showing that the lines
between species are hazy"

.

"As two species evolve,
they can develop new abilities.
Some hybrids could combine
the best of both species"

"the biological barriers to the creation
of hybrids increase
the longer the species are apart"

" It is thought that human ancestors
were adapting to life on the savannah
instead of the forest
where chimpanzees still live today
It is not known why human ancestors
would have begun mating
with chimpanzee ancestors again
or why they would have stopped "

To understand how long ago
humans split from chimpanzees
required a close study of DNA from the two
This technique rests on the idea
that once the populations separate
the DNA will slowly drift apart
as natural mutations accumulate
If they can count the number of changes
and determine how quickly
the changes happened
then they can calculate how long
the two populations have been separate"

"Previous studies have used this idea
and found that the two species split
between about 5 million and 8 million years ago"

"The Broad team sought to get a more precise answer
by looking at how different the DNA
of chimps and humans
is at many locations
instead of calculating
an average difference"

" The DNA of humans and chimpanzees
is quite similar
meaning that scientists can readily identify
many segments of DNA
that are so similar
they must have been handed down
by a common ancestor
deep in the past"

Scientists can then use
a computer to put the segments
of human and chimp DNA into alignment
placing side by side
the segments that are very similar"

"For each pair of segments
they then calculated how long
it would have taken to accumulate
all the differences".


"This analysis brought surprises
that the team could explain only
by suggesting
human ancestors and chimpanzee ancestors interbred"
First, they found that the divergence times
varied widely
Some parts of the DNA seemed to indicate
the human and chimpanzee species
had been apart much longer than others
by millions of years
If humans split from chimps
and then interbred before splitting again
the more divergent DNA sequences
could date to before the first split
while the less divergent sequences
could date to just before
the second split"

"The other surprise
was that sequences from the X chromosome
one of two chromosomes
that determine gender
gave consistently more recent divergence times
instead of the range seen on other chromosomes
This, too, would be explained
by the idea of interbreeding
according to the report
The X chromosome is thought to be
the focus of fertility problems
in hybrids
and population models suggest
that all of the X chromosomes
in a hybrid population
would quickly come to match
those of one of the parent species
This would explain why
the human and chimpanzee X chromosomes
are so similar".


am i reading this right

cause it sounds like the chimpsd
were fuckin us not we fuckin the chimps

thank god the gorilla study is still
two years from completion

my guess
our grand to the nth mothers
got fucked by them ...." to the nines "

Posted by pinky at May 18, 2006 07:34 PM