There were some monkeys shivering from cold. They gathered together and decided that they must burn fire as human being do. They then decided that they should collect red looking object that human being used to light fire.

However instead of embers they found similar looking red nuts in the forest.
They collected some wood and put those nuts onto the wood and began blowing it so that fire would catch up.

A bird was sitting in the tree near by.
He told those monkeys that they were not on correct path. They would never get fire by burning those nuts. But the monkeys felt offended that their belief was challenged. Monkeys told the bird to shut up.

Seeing that monkeys would die of cold that way, the bird again tried to convince the monkeys that they should try find embers.
Monkeys, this time, went after the bird as they felt that what they thought was the correct and that they would not tolerate their wisdom challenged. The bird was badly injured and somehow managed to flew away.

Monkeys continued with their belief and were eventually died of cold!

No one can save fools!