Why God why, you ask? Because common carp ( Cyprinus carpio) have reaped serious damage on Australia waterways, with populations getting out of control, ripping up vegetation, increasing sediment, and hunting native plants and animals. While the idea of controlling carp with a virus has been mulled over since 2016, in January of this year, government scientists formally asked for approval to kill the problematic non-native carp by releasing Koi Herpesvirus (KHV) into the continent’s largest freshwater supply. Some scientists, however, say this herpes idea may be a pile of carp. “Viral bio...