 Examination of the weather patterns and ocean currents indicated that the iguanas had probably spent three weeks at sea before arriving on Anguilla.This new colony began breeding on the island within two years of its arrival.In February 2012, the government of Puerto Rico proposed that the islands' iguanas, which were said to have a population of 4 million and considered to be a non-native nuisance, be eradicated and sold for meat.