Should you eat invasive species? We asked an ecologist.

Should you eat invasive species? Lionfish ceviche is surprisingly tasty. Breakthroughs, discoveries, and DIY tips sent six days a week. "By definition, invasive species are harmful in some regard," says Jacob Barney, a professor of invasive plant ecology at Virginia Tech University. So when we eat them, he adds, "we turn that harm into something positive."