Newshour - Why are Cows' Gallstones So Valuable? - ÃÛÑ¿´«Ã½ Sounds

Newshour - Why are Cows' Gallstones So Valuable? - ÃÛÑ¿´«Ã½ Sounds
Why are Cows' Gallstones So Valuable?
Used in Chinese medicine, gallstones from cows are worth up to Aus $23,000 a kilo.