The reading expresses that T. rex dinosaurs used their arms to slash their prey and provides three points to claim this idea. However, the professor in the lecture opposes this idea and refutes each of the points made in the reading.
First, the reading mentions that based on the fossils studies, it has been shown that T. rex's arm was connected to a chief amount of muscles and this provided a principal power to slash its food. The professor disagrees with this idea and explains that it does not seem likely that the arms' first goal was to slash the prey, even if, there is no doubt in the power of arms. He refers to fossils that show bone fractions in these animals. These records show us that fractions were healed after a while. Therefore, if the arms were crucial for slashing, T. rex would have died after a broken bone in its arm.
Second, the reading states that T. rex dinosaurs had two claws instead of three which is common in all other carnivorous. This leads to a powerful claw that can make deeper cuts. This contradicts the professor who explains T. rex had one of the strongest jaws among all dinosaurs and it does not make sense to use a claw when there is a powerful jaw. He adds that T. rex could make great pressure on its prey by its teeth and strong jaw.
third, the reading claims that the short arm in this animal was very useful. Since it weighs less, T. rex needed less energy while holding and carrying its food. However, the professor disagrees with this claim and mentions that these arms were only efficient in younger dinosaurs and they used longer arms to catch other animals. But after they entered their adulthood, with the growth of teeth and jaw, there was no need for arms, and the jaw could do the work for them
The
reading
expresses that T.
rex
dinosaurs
used
their arms to slash their prey and provides three points to claim this
idea
.
However
, the
professor
in the lecture opposes this
idea
and refutes each of the points made in the reading.
First
, the
reading
mentions that based on the fossils studies, it has
been shown
that T.
rex
's
arm
was connected
to a chief amount of muscles and this provided a principal power to slash its food. The
professor
disagrees with this
idea
and
explains
that it does not seem likely that the arms'
first
goal was to slash the prey, even if, there is no doubt in the power of arms. He refers to fossils that
show
bone fractions in these animals. These records
show
us that fractions
were healed
after a while.
Therefore
, if the arms were crucial for slashing, T.
rex
would have
died
after a broken bone in its arm.
Second, the
reading
states that T.
rex
dinosaurs had two claws
instead
of three which is common in all other carnivorous. This leads to a powerful claw that can
make
deeper
cuts
. This contradicts the
professor
who
explains
T.
rex
had one of the strongest
jaws
among all dinosaurs and it does not
make
sense to
use
a claw when there is a powerful
jaw
. He
adds
that T.
rex
could
make
great pressure on its prey by its teeth and strong jaw.
third
, the
reading
claims that the short
arm
in this animal was
very
useful. Since it weighs less, T.
rex
needed less energy while holding and carrying its food.
However
, the
professor
disagrees with this claim and mentions that these arms were
only
efficient in younger
dinosaurs and
they
used
longer arms to catch other animals.
But
after they entered their adulthood, with the growth of teeth and
jaw
, there was no need for arms, and the
jaw
could do the work for
them