The reading claims that some paleontologists interpert lines found surrounding the skeletal bones of Sinosauropteryx as evidence that it had feathers, but critics have opposed this idea for several reasons. However, the professor states that the evidence is indicated that Sinosauropteryx had feathers and the reasons in in the article are not convincing. She refutes each of the author's reasons.
First, the article avers that the fines lines may not even represent funtional structures of a living dinosaur, but rather structures that were formed after the animal's death. On the other hand, the professor opposes this point by saying that the result indicated that there is no decomposition buried there. In fact, the evidence show that the skin is represented in ash and the other fossil of dinosaur well preserved and the lines in the fossil are possible feathers and not decomposition.
Second, the reading asserts that scientists can not tell with certainly what part of the dinosaur's anatomy the structures were. Conversely, the lecutrer counters this point by stating that there is important chemical different between feather and frill. She says that feather contains special protein called perkeratin, but frill does not contain this protein. Actually, scientists did find this protein and this approve that these lines are feathers and not frill.
Third, the passage posits that the structures represented by the lines in the Sinosauropteryx fossil were mostly located along backbone and the tail of the animal. However, the professor casts doubt on this point by explaining that dinosaur can use feathers for other things, not for theremoregulation. She explains that special birds have long feather in the tail to attract mate, and this strongly support that Sinosauropteryx that used feathers to display function because they found that dinosaur showed colored feathers.
The reading claims that
some
paleontologists
interpert
lines
found surrounding the skeletal bones of
Sinosauropteryx
as evidence that it had
feathers
,
but
critics have opposed this
idea
for several reasons.
However
, the professor states that the evidence
is indicated
that
Sinosauropteryx
had
feathers
and the reasons
in in
the article are not convincing. She refutes each of the author's reasons.
First
, the article avers that the fines
lines
may not even represent
funtional
structures
of a living
dinosaur
,
but
rather
structures
that
were formed
after the animal's death.
On the other hand
, the professor opposes this point by saying that the result indicated that there is no decomposition buried there. In fact, the evidence
show
that the skin
is represented
in ash and the other fossil of
dinosaur
well preserved
and the
lines
in the fossil are possible
feathers
and not decomposition.
Second, the reading asserts that scientists can not
tell
with
certainly
what part of the dinosaur's anatomy the
structures
were.
Conversely
, the
lecutrer
counters this point by stating that there is
important
chemical
different
between
feather
and frill. She says that
feather
contains special protein called
perkeratin
,
but
frill does not contain this protein. Actually, scientists did find this protein and this approve that these
lines
are
feathers
and not frill.
Third, the passage posits that the
structures
represented by the
lines
in the
Sinosauropteryx
fossil were
mostly
located along backbone and the tail of the animal.
However
, the professor casts doubt on this point by explaining that
dinosaur
can
use
feathers
for other things, not for
theremoregulation
. She
explains
that special birds have long
feather
in the tail to attract mate, and this
strongly
support that
Sinosauropteryx
that
used
feathers
to display function
because
they found that
dinosaur
showed
colored
feathers
.