Instead of using the saying "they breed like rabbits", we should say "they breed like deer".
In 1962 the Michigan DNR released 17 deer on South Fox Island, an island of a little more than 3,000 acres, about 5 square miles, some 17 miles from the northern Michigan mainland into Lake Michigan.
The 17 of deer released consisted of six bucks and eleven does. At least two died that winter, so no more than fifteen deer were alive on the island to begin its repopulation.
In 1969, seven years after the first deer were planted on the island, the herd numbered at least five hundred. At least forty more deer had been taken by hunters.
In eight years, the original 15 deer had produced a herd from which at least 620 deer had been killed and the herd still numbered 15 times larger than the number put there in the first place.
If continued intense hunting is not practiced, the herd will double each fall. The island once could provide food for approximately eight hundred deer. Its carrying capacity has now dropped to possibly four hundred."