The Chinese have been making silk since ancient times.
It comes from the silk worm, a relative of the caterpillar which makes cocoons. The worms produce cocoons. When these are
complete, they are placed in an oven, to kill the worm. The cocoons are then harvested and the dead worms removed. The cocoon material is spun into the silk fabric and dyed.
Above: worms and cocoons.
Below: silk being spun and finished