The jaguar is the third largest of the big cats, and pound for pound the most powerful. Our jaguar patrols a home range of over one hundred square kilometers in Brazil, deep in the heart of the world's largest tropical rainforest. But human interference means that his life only gets tougher.美洲豹是体型第三大的大型猫科动物，但就单位体重而言，它是最强壮的。我们的这只美洲豹在巴西活动，巡逻的领地超过一百平方公里，位于世界上最大的热带雨林深处。然而，人类的干预使得它的生活变得愈发艰难。