https://blogs.mercola.com:443/sites/vitalvotes/archive/2004/07/29/Even-Zoo-Animals-Are-Being-Killed-by-Too-Much-Iron.aspxOver the past decade around half the rare black rhinos in American zoos have died prematurely of chronic anaemia. Affected animals suffer from low blood cell counts, weakness and apathy and often pass blood in their urine shortly before they die. In humansenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)