Invasive sheep brought to US after WWII are making Texas bighorns sick

Invasive aoudad sheep, brought to the US after WWII, are devastating Texas bighorn populations by spreading deadly diseases with fatality rates up to 80%. This cross-species infection is a significant threat to the native bighorn sheep, which are already endangered. The situation highlights the environmental risks of introducing non-native species and underscores the urgent need for wildlife conservation measures to protect native populations.