The Department of Parks and Wildlife in Malawi says it is investigating the cause of massive deaths of hippos at one of its national parks, Liwonde.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/malawi-probes-massive-deaths-hippos-national-park
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/all-africa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/malawi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/wildlife
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-park