Silkworms are a kind of amazing insect

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Silkworms are a kind of amazing insect. These insects are raised in most areas of China. The domestication and home feed of these insects has a long history of about 5,000 years. The artificial stocking of tussah also originated in China and gradually formed an industry after the Song and Yuan Dynasties. The Tang Dynasty poet Li Shangyin's poem "The spring silkworms finish to spin silk until they are dead, that candle burns over to be ash looks like a wax oil to dry.


" The metaphor of this poem is to the miss of lover to the last minute. In fact, from a biological point of view, the spring silk is not dead when it runs out. It just walks through the larval stage of life and is about to free email lists uk become a silkworm pupa. The life of a silkworm goes through four completely different stages of development: eggs, larvae, pupae and moths.




It takes about 40 to 60 days to change from a thin silkworm egg to a larvae. The larvae goes through four sleeps and four wake-ups until becomes mature silkworm. After becoming a mature silkworm, it spins silk and becomes silkworm pupa, finally it transforms into a moth and the silkworm cocoon is drilled out to lay eggs. This cycle of life triggered the ancient people's associations and reflections on the important issues of life such as heaven and earth, life and death.