Australian+Possums+in+New+Zealand

Australian possums are a real problem in New Zealand. The animals were sent to the island of New Zealand for trading purposes, since their fur was highly valued in Australian trade. The kiwis (people of New Zealand) wanted a good fur trade as well. It was a good idea, but the possums soon started to reproduce out of control and now their immense population causes damage to the land and to agriculture. The possums consume an immense amount of vegetation across the country every day, and they also spread bovine tuberculosis to cattle and deer, which then affects the country's agriculture. Ecologists have toyed with the ideas of contraceptives and ways of making the possums sterile in order to quell the issue of their "invasion" of the island.