What is Floppy trunk syndrome?

Floppy trunk syndrome is a condition that causes trunk paralysis in African bush elephants. Initially observed in 1989, the syndrome primarily affected bull elephants in several select regions in Zimbabwe. Afflicted elephants exhibit paralysis in their trunk, often having to adapt to feed. The loss of their trunks' prehensile abilities results in malnutrition and possibly death. The condition is a result of degeneration of nerves in the trunk, and is suggested to be a result of either heavy metals or toxins. There is debate over whether the condition is reversible.