Thomas Austin released 24 rabbits into Australia in 1859 so that he could hunt them.
The rabbits quickly multiplied and by 1900 there were more than a billion rabbits in Australia.
The government tried many ways to decrease the population, but they were unsuccessful until the 1950s, when they infected the rabbits with a disease. This method decreased the rabbit population by 90%.
The U.S. chose the island of Bikini Atoll to test nuclear weapons.
The biggest explosion was a hydrogen bomb code-named Bravo. This explosion destroyed the island.
The Bikini Islanders were forced to move to new islands, but there were dangerous levels of radiation on several other islands.