I have recently discovered a new podcast in English called the BBC Earth Podcast, and I am really hooked on the fascinating stories told on the podcast about animals. In today's episode that I listened to, there was a story about the life cycle of the liver flukes. The liver flukes live as parasites in the liver of a cow. They mate and lay eggs, but the eggs don't stay in the cow. They are transported out of feces. If the eggs are lucky, the poo of the cow is eaten by a snail. In the snail the eggs reach the intestines and start hatching into larvae, where the larvae start cloning themselves like crazy. When there are enough of them, they are rejected by the snail's respiratory tract in the form of a ball of slime. The slime is eaten by the ant. In the ant, the little flukes make their way to the ant's brain and make it mad. It climbs to the top of a grass and stays there until it is eaten by another cow, where the little flukes can complete their journey to adulthood and start the whole process all over again.