Viewpoints on farming policy and agricultural issues. Imported snakes are seen as a potential threat to rare bird species in Hawaii.
Scotch thistles invade Australian crop fields.
English foxes and rabbits threaten the habitats of small Aussie mammals. The list goes on. Man has long been a major factor in these invasions. Today we not only have more and bigger ships, but airplanes and those ubiquitous freight containers, which travel to every corner of every continent. It proved to be one of the most productive and nutritious plants on earth.