Invasive alien plants and animals are one of the five major threats to global biodiversity. These are defined as non-indigenous species that adapt well to conditions where they are introduced and then spread or flourish rapidly, often in the absence of their natural enemies. If nothing is done to reduce the spread or eradicate these species, they can take over large pieces of agricultural and protected land, cause disease or injuries to both livestock and wildlife, negatively affect indigenous plants and animals, and ultimately damage native ecosystems.