Guwahati: After poachers, floods have turned out to be a major killer of one-horned rhinos at the famed Kaziranga National Park, a world heritage site located on the southern banks of the Brahmaputra in Assam. Altogether 168 rhinos have died due to floods between 1974 and 2007. During the period, 385 rhinos were gunned down by poachers in the park, while 210 pachyderms fell to pit poaching. Twenty-two rhinos died after getting stuck in mud, while four died after being hit by speeding vehicles in an attempt to flee the sanctuary during floods. In 1998, 30 rhinos died in the park due to flood related reasons. Tiger attacks on the pachyderms were also high in the last three decades with the big cats alone killing 419 rhinos in Kaziranga.