Both the reading passage and professor's lecture discuss whether the fine lines were feathers or not.
Both the reading passage and professor's lecture discuss whether the fine lines were feathers or not. GMoGg
Both the reading passage and professor's lecture discuss whether the fine lines were feathers or not. The reading passage shows that the fine lines were not the feathers because they might be the fibers' decomposition, remains of frills, or mis-located. However, the professor discords with the issues in the reading passage. He thinks that three theorems presented in the reading are questionable, offering several refutations to oppose the article.
First of all, the reading mentions that the fine lines were skin fibers in the fossils. Yet, the lecturer severely challenges the theory by arguing that we did not see any other animals' decomposition buried at the same time. Furthermore, he contends that many other animals' fossils were well-preserved in volcanic ash. That is, if the fine lines were the feathers, it must be well-preserved as well.
Secondly, the passage suggests that the fine lines were remains of real structures, which were more likely to be frills than feathers. Nevertheless, the scholar seriously contradicts the hypothesis by asserting that the feathers had a lot of special proteins and the frills did not contain those special proteins, Moreover, the chemical analyses showed the Sinosauropteryx structures did contain the particular proteins, so it might be the feathers rather than frills.
Last but not least, the reading article indicates that the structures were mostly located along the backbone and the tail of the animal, so it might not be the feathers. Once again, the speaker casts doubt on the issue by maintaining that feathers can be used for other functions. In addition, the professor takes peacock for example, and he points out that the peacock's feathers are used for attracting mates. Also, we discovered that the Sinosauropteryx's structures were colorful. Thus, it might be also used for display, just like peacock does.
Both the
reading
passage
and professor's lecture discuss whether the
fine
lines
were
feathers
or not. The
reading
passage
shows
that the
fine
lines
were not the
feathers
because
they
might
be the fibers' decomposition, remains of frills, or
mis-located
.
However
, the professor discords with the issues in the
reading
passage
. He
thinks
that three theorems presented in the
reading
are questionable, offering several refutations to oppose the article.
First of all
, the
reading
mentions that the
fine
lines
were skin fibers in the fossils.
Yet
, the lecturer
severely
challenges the theory by arguing that we did not
see
any other animals' decomposition buried at the same time.
Furthermore
, he contends that
many
other animals' fossils were well-preserved in volcanic ash.
That is
, if the
fine
lines
were the
feathers
, it
must
be well-preserved
as well
.
Secondly
, the
passage
suggests that the
fine
lines
were remains of real
structures
, which were more likely to be frills than
feathers
.
Nevertheless
, the scholar
seriously
contradicts the hypothesis by asserting that the
feathers
had
a lot of
special proteins and the frills did not contain those special proteins,
Moreover
, the chemical analyses
showed
the
Sinosauropteryx
structures
did contain the particular proteins,
so
it
might
be the
feathers
rather
than frills.
Last
but
not least, the
reading
article indicates that the
structures
were
mostly
located along the backbone and the tail of the animal,
so
it
might
not be the
feathers
. Once again, the speaker casts doubt on the issue by maintaining that
feathers
can be
used
for other functions.
In addition
, the professor takes peacock
for example
, and he points out that the peacock's
feathers
are
used
for attracting mates.
Also
, we discovered that the
Sinosauropteryx
's
structures
were colorful.
Thus
, it
might
be
also
used
for display,
just
like peacock does.