Origin of Rift Valley Ecosystems (ORVE) is a research program comprising a number of projects working on both sides of Lake Turkana. Three ORVE projects are currently underway; two on the west side of the lake (Losodok/Nakwai, Tab Rasmussen) and (Kalodirr/Moruorot, James Rossie), and one on the east (Buluk, Ellen Miller).