<human>: Is it true that the world's most expensive coffee is made from a rare species of civets?
<bot>: Yes, it is. The world's most expensive coffee is called Kopi Luwak and is produced by processing beans from the droppings of Indonesian civet cats. Civet cats are omnivores that eat fruit, vegetables, insects, and small mammals such as rodents. They have a unique digestive system that allows them to digest the tough outer layer of the bean, making the inside soft enough for humans to consume. This process produces a very high-quality coffee bean that is considered one of the best in the world.