The reading and the lecture are both about the credence of the hypothesis regarding Sinasauropteryx. Three theories are provided in the passage in order to refute the interpretations of the evidence acquired through fossils which argue that this type of dinosaur was feathered. On the other hand, the professor is not convinced of this and casts doubt on each of the theories presented in the passage. The lecturer is of the opinion that these dinosaurs, definitely, had feathers based on the following debated.
First of all, the author argues that the lines defining as remains of the feather can be created after the animals were dismissed. Accordingly, the passage mentions that the skin has decomposed into fibers, and the fibers have been preserved in the volcano ash, where the bodies has been buried. This specific argument has been challenged by the lecturer. According to the professor, since other bodies corps’ skins in the same site were totally preserved, these lines are not formed from fibers created by skin decomposition. Therefore, the lecturer firmly clings to this claim that the lines are caused by feather.
Secondly, the writer disputes these lines can give rise to the hypothesis that they are shaped from frills’ remains which is fan-shape structure out of the animals’ body. The lecturer, on the contrary, opposed this notion by providing the chemical analysis evidences. Furthermore, he elaborates on this by bringing the point that feather has a chemical substance thoroughly distinct from frills, which gives credence to the note that they cannot be mistaken.
Finally, the writer points to the ordinary function of the feather to averts that the remains are not from feather, given that animals apply their feather for thermoregulation or flying purposes; however, they have been assumed needless of both these objections. In contrast, the professor put forward to the point that beside these purposes, animals utilize feather to attract their mate which is known as display function. Hence, since these animals structure indicates colorfulness, it can be implied that they apply display function, and hardly we can assert that the remains were not created from feather.
The reading and the lecture are both about the credence of the hypothesis regarding
Sinasauropteryx
. Three theories
are provided
in the passage in order to refute the interpretations of the evidence acquired through fossils which argue that this type of dinosaur
was feathered
.
On the other hand
, the professor is not convinced of this and casts doubt on each of the theories presented in the passage. The
lecturer
is of the opinion that these dinosaurs, definitely, had
feathers
based on the following debated.
First of all
, the author argues that the
lines
defining as
remains
of the
feather
can
be created
after the
animals
were dismissed
.
Accordingly
, the passage mentions that the skin has decomposed into fibers, and the fibers have
been preserved
in the volcano ash, where the bodies
has
been buried
. This specific argument has
been challenged
by the
lecturer
. According to the professor, since other bodies corps’ skins in the same site were
totally
preserved, these
lines
are not formed from fibers created by skin decomposition.
Therefore
, the
lecturer
firmly
clings to this claim that the
lines
are caused
by feather.
Secondly
, the writer disputes these
lines
can give rise to the hypothesis that they
are shaped
from frills’
remains
which is fan-shape structure out of the
animals’
body. The
lecturer
,
on the contrary
, opposed this notion by providing the chemical analysis evidences.
Furthermore
, he elaborates on this by bringing the point that
feather
has a chemical substance
thoroughly
distinct from frills, which gives credence to the note that they cannot
be mistaken
.
Finally
, the writer points to the ordinary function of the
feather
to averts that the
remains
are not from
feather
,
given
that
animals
apply their
feather
for thermoregulation or flying purposes;
however
, they have
been assumed
needless of both these objections.
In contrast
, the professor put forward to the point that beside these purposes,
animals
utilize
feather
to attract their mate which
is known
as display function.
Hence
, since these
animals
structure indicates colorfulness, it can
be implied
that they apply display function, and hardly we can assert that the
remains
were not created from
feather
.