Survival of the Fittest
Over a decade ago, my cat was stronger than a chicken here. And there were no chickens which eat cat food. Only bird trying to get cat food was Mynah Bird.
But recently I realized chicken came to love cat food. Their appetite was enormous. They are always walking around a cat and they are very greedy about taking cat food.
And now chickens are stronger than a cat and they can make a cat run away. To my surprise, they can fly to the roof of the temple and fight with a mynah bird, too.
This is something I never saw it before. And I now can see "struggle for existence" in chicken, which may lead to the evolution of the stronger specie on the island.
People sometimes use a word "chicken" as a meaning of coward. But at least chickens here are not coward. They are very greedy about eating and struggling for living. In the future, chicken can survive as a result of "survival of the fittest."