The poinars ' theory is much
More likely to be true . Actually
George and roberta agree that
Insects were probably just one
Factor in the disapperance of the
....... Climate change could
Also have contributed to this
Gradual process . Because
Dii..... Were cold-blooded , they
Might not have survived
Increasingly cold temperatures.
Perhaps it was more and more
Difficult for them to find food in
The colder climate , experts argue
We may never know exactly
Who or what killed the ......
But it seems that new ideas about
This mystery will continue to
Fascinate future generations.