journey home. over the years, the goats ate just about every plant of isabela and the tortoises began to starve. so desperate to save them, the ecuadorian government brought in carl, who knew exactly what had to be done. you used sharp shooters in helicopters. we did. snipers just instituting tens of thousands of goats a year. it was a lot of hard work. in the beginning, it was easy but if the galapagos taught us anything it s that animals adapt. the goats eventually realized that the sound of a helicopter means death from above, and they learned to hide. so carl adapted by strapping radio tracking collars on several female goats in heat, the so-called judas goats led the last survivors right to the snipers.