Aciclovir is active against most species in the herpesvirus family.

"We have the right to defend ourselves," she said, "against species who would bring about our destruction."

This is a war against species and I have my side.

The bigger issue is how we as a country protect ourselves against invasive species.

"I don't have anything against other species, but I do believe humans are important."

This plant is allelopathic against other species growing around it.

As it turns out, $1 million is a relatively modest amount in the war against alien species.

The operculum may provide some protection against smaller predatory species.

Still, officials called the executive order, which requires all Federal agencies to design their policies with the war against alien species in mind, an important step.

"You're all worried about species against species here," she continued.