The Arakan Mountains act as a barrier to the southwestern monsoon rains and thus shield the central Myanmar area, making their western slopes extraordinarily wet during the monsoon with typically over of rain per month, and the eastern slopes much drier. They include the Chin Hills-Arakan Yoma montane forests ecoregion which is home to an elephant population and also the critically endangered Arakan forest turtle which was considered extinct until its rediscovery in 1994.