When Thomas Austin released 24 rabbits onto his Australian farm in 1859, he was unaware of the damage they would cause to the Australian ecosystem. Within 35 years, the rabbits, which had no natural predators in Australia, spread throughout the mainland and destroyed millions of acres of farmland. In 1901, construction began on a fence that would traverse Western Australia from north to south and was intended to contain the rabbits east of the barrier. What animal was used to inspect the fence? Discuss