What do you think are the most promising natural animal spices? Why?

Long Xianxiang, castoreum, musk and civet.

1, Long Xianxiang and Longxianxiang are pathological secretory stones produced in the intestine of sperm whales, and their density is lower than that of water. After being excreted, it floats on the sea or rushes to the shore and is collected by people. At present, a large number of Long Xianxiang come from whaling, but few sperm whales contain Long Xianxiang.

2, civet cat fragrance, civet cat fragrance comes from the bursa gland of civet cat, without special processing. The sticky secretion secreted by the sachet is called civet fragrance with a scraper. The modern method of collecting civet incense is to raise civet cats and shave them regularly.