Man seems to be the most cruel animal in this Universe. No animal kills other oraganisms without necessity. Animals kill other animals for food alone. When the necessity has been resolved, they do not involve in further killings. We have got so many evidences that even a lion is harmless if it is not hungry.
But man is cruel. He kills animals for food. He kills animals for skin. He kills animals for decorations. He kills animals for fun. The killing has extended from bigger to tiny organisms.
Man has extended his evil killing even to the Silk Worms. Tonnes of Silk worms are boiled before they come out of the cocoons to get GOOD quality of Silk. Man has curtailed the right to live from millions of Silk worms, even before they breath the fresh air. The Silk dress we wear and Silk materials we use are all the result of death of millions of Silk worms.
Even Kanchi Maha Periyaval had instructed not to use Silk items by any means and advised to avoid Silk items esp. in marriage.
The only consoling news is that, Industries have started manufacturing "Ahimsa Silk". In this type, the Worms are not killed. The remains, after the worms have left the Cocoons, are used as raw material for dresses. In this way, Silk could be obtained without killings. But the problem with this type of Silk is that the Quality is not good when compared to the usual Silk.
So, it might take some more time for these kind of Ahimsa Silk to be popular. Let the Ahimsa Silk save the life of Silk Worms...