Here in Australia someone thought that to introduce rabbits would be a great idea, so tasty and so cuddly! Then the interesting Prickly Pear was introduced as a house plant! And the fox to provide something to hunt (those koalas are so damn SLOW)! Then camels were used in the desert and set free when the rail came, likewise horses! And starlings and sparrows to Europeanise this hostile landscape! But the crowning glory in the 'let's introduce things into this pristine country where it will have no predators' was the jolly Cane Toad, surely one of the most loathsome creatures on the planet! So I suggest giving a home to the Woolly Mammoth here in Australia, it could do no more harm than these and all the other introduced disasters.
(In all honesty I must own up to one introduced species that many think is the worst of the lot, the domestic house cat- but I love my fluffy moggie and try not to count the birds he kills.)
