Louisiana has become home to numerous invasive species, some of them wreaking havoc on the state's environment. Here are the threats to the state.

Invasive species, such as nutria, Asian tiger mosquitos, and wild boars, are causing significant harm to Louisiana’s ecosystems, economy, and human health, and researchers are working to find… ...

Red imported fire ants are a species of ant native to South America, and they were first brought to the U.S. in the 1920s via a ship from Argentina. These insects are considered to be aggressive ...

Fewer than 2,000 spotted owl pairs survive in Oregon, despite logging restrictions and decades of efforts to protect the species.