https://phys.org/news/2018-07-10th-endangered-rhino-dies-kenya.html > Preliminary investigations show the rhinos died from stress intensified by salt poisoning as the animals struggled to adjust to saltier water in their new home, Balala said. > "The animals were dehydrated, restless" and drinking more of the water only worsened the problem, said Peter Gathumbi, professor of veterinary pathology at the University of Nairobi.