Human stupidity
Isn't it ironic that human greed can adversely effect the status quo and natural balance initially intended for our beautiful planet. And when disaster strikes humans promptly pass the buck.
Take mad cows disease for instance. Nothing to do with crazy, stupid cows, only human greed. The disease is caused by feeding the cows an alien food source such as dried offal from dead animals instead of their normal food, grass.
Another example is the ubiquitous bird flu virus, started by cramming thousands of chickens in filthy conditions for maximum profit. So it's not the dumb animals fault as people would have you believe; it's the dumb people's disease caused totally by people.
JOHN SMITH, Bali