South Africa: wild animals at risk of 'genetic pollution'

Scientists say lions and rhinos among species at risk from breeding of trophy animals

Lions, rhinos and cheetahs are among the wild species at risk of irreversible "genetic pollution" from breeding experiments, scientists have warned.

South African game farmers have increasingly been breeding novel trophy animals, including some freakishly-coloured varieties such as the black impala, golden wildebeest or pure-white springboks.