National Geographic defines invasive species as any organism that is not indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area. To be invasive, a species must adapt to the new area easily. It must reproduce quickly. It must harm property, the economy, or the native plants and animals of the region. And they can be found both on land and at sea, both as microorganisms or even as large as mammals. Will you offer us a hand? Every gift, regardless of size, fuels our future. Your critical contribution enables...