The author of the reading believes that Edmontosauruses migrated in the winter for surviving and provides three reasons of support. However, the lecturer rejects the claim made in the reading, casting doubt on all the three reasons presented in the passage.
First, the author claims that based on the edmontosaur's diet, it can be claimed that they had migrated during the winter to find more food. This point is challenged by the lecturer. She says that at that time the summer was warmer than today, and all conditions were more suitable for growing enough plants. Also, she mentions that there was ample nutrition for their feeding. So, they did not need to emigrate to other places.
The author of the reading states that those dinosaurs lived in herds and migrated with each other as like as contemporary migratory animals that live in herds and emigrate with each other. The lecturer rebuts this. She mentions that living in a herd has several reasons. She elaborates on this by mentioning that other reasons such as protect against some predators was the possible reason. Also, she says that some animals such as a kind of elk live in herds, but they don't emigrate.
Finally, the writer points out that edmontosaurs had some physical ability and were capable of migrating long distances. The lecturer, on the other hand, states that young edmontosaurs were not able to walk as fast as their adults. Moreover, youngsters couldn't survive alone. Therefore, their parents couldn't leave them and couldn't emigrate.
The author of the reading believes that
Edmontosauruses
migrated in the winter for surviving and provides three
reasons
of support.
However
, the
lecturer
rejects the claim made in the reading, casting doubt on all the three
reasons
presented in the passage.
First
, the author claims that based on the
edmontosaur
's diet, it can
be claimed
that they had migrated during the winter to find more food. This point
is challenged
by the
lecturer
. She says that at that time the summer was warmer than
today
, and all conditions were more suitable for growing
enough
plants.
Also
, she mentions that there was ample nutrition for their feeding.
So
, they did not need to emigrate to
other
places.
The author of the reading states that those dinosaurs
lived
in
herds
and migrated with each
other
as like as contemporary migratory animals that
live
in
herds
and emigrate with each
other
. The
lecturer
rebuts this. She mentions that living in a
herd
has several
reasons
. She elaborates on this by mentioning that
other
reasons
such as protect against
some
predators was the possible
reason
.
Also
, she says that
some
animals such as a kind of elk
live
in
herds
,
but
they don't emigrate.
Finally
, the writer points out that
edmontosaurs
had
some
physical ability and were capable of migrating long distances. The
lecturer
, on the
other
hand, states that young
edmontosaurs
were not able to walk as
fast
as their adults.
Moreover
, youngsters couldn't survive alone.
Therefore
, their parents couldn't
leave
them and couldn't emigrate.