1. University of Nairobi Department of Biology, , PO Box 30197-00100, Nairobi , Kenya
2. Smithsonian Conservation Biology Institute Department of Reproductive Biology, , Front Royal, VA 22630 , USA
3. Smithsonian Conservation Biology Institute Center for Species Survival, , Front Royal, VA 22630 , USA
4. San Diego Zoo Wildlife Alliance Conservation Science and Wildlife Health, , San Diego, CA 92027 , USA
5. Smithsonian Conservation Biology Institute Global Health Program, , Washington, DC , USA
6. Space for Giants Conservation Science Department, , PO Box 174-10400, Nanyuki , Kenya
7. Colorado State University Department of Fish, Wildlife, and Conservation Biology, , Fort Collins, CO , USA
8. Save the Elephants , P. O. Box, 54667 - 00200, Nairobi , Kenya