Regarding the reading, scientist were really excited to have the opportunity to find an actual tissue inside a Tyrannosaurus rex(T. rex) a dinosaur fossils, when one of the scientist broke open a leg bone of T. rex exposing its inside to reveal materials that seems like a remains of blood vessels, red blood vessels, and collagen matrix. In contrast, the professor is skeptical about these findings, therefore he refuted the author's reasons due to three concrete pieces of evidences.
First, that finding hollows inside the bone resembling a blood vessels of T. rex, based on what the reading claims, is refuted by the professor. He stated that long after the animal dies bacteria colony live inside the animals bones and the soft moist hollows found by the scientist are more likely to be a reside of an old bacteria colony.
Second, the reading states that breaking the bone revealed several small branching channels that looks like red blood cell of T. rex. Quite the reverse, the professor mentions that since the scientist found the same channels inside animals who lived at the same location, those animals did not have red blood cell that only confirm the idea that these channels are nothing but a reddish minerals.
Third, according to the reading, scientists examined the dinosaur leg bone and found that it contained collagen. The professor casts doubt on this issue by saying that scientist had never found any collagen in animal 1000 year old. That make it really challenging to believe that T. rex bone which dated 700 million years old contain collagen. The professor offer another plausible explanation for the collagen sample saying that this collagen might belong to the researcher who handle the bone incorrectly.
Regarding the
reading
,
scientist
were
really
excited to have the opportunity to find an actual tissue
inside
a Tyrannosaurus
rex
(T.
rex
) a dinosaur fossils, when one of the
scientist
broke open a leg
bone
of T.
rex
exposing its
inside
to reveal materials that seems like
a remains
of
blood
vessels, red
blood
vessels, and collagen matrix.
In contrast
, the
professor
is skeptical about these findings,
therefore
he refuted the author's reasons due to three concrete pieces of evidences.
First
, that finding hollows
inside
the
bone
resembling a
blood
vessels of T.
rex
, based on what the
reading
claims,
is refuted
by the
professor
. He stated that long after the
animal
dies
bacteria colony
live
inside
the
animals
bones
and the soft moist hollows
found
by the
scientist
are more likely to be
a reside
of an
old
bacteria colony.
Second, the
reading
states that breaking the
bone
revealed several
small
branching channels that looks like red
blood
cell of T.
rex
. Quite the reverse, the
professor
mentions that since the
scientist
found
the same channels
inside
animals
who
lived
at the same location, those
animals
did not have red
blood
cell that
only
confirm the
idea
that these channels are nothing
but
a reddish
minerals
.
Third, according to the
reading
,
scientists
examined the dinosaur leg
bone
and
found
that it contained collagen. The
professor
casts doubt on this issue by saying that
scientist
had never
found
any collagen in
animal
1000 year
old
. That
make
it
really
challenging to believe that T.
rex
bone
which dated 700 million years
old
contain collagen. The
professor
offer another plausible explanation for the collagen sample saying that this collagen might belong to the researcher who handle the
bone
incorrectly
.