In this Wednesday, Nov. 28, 2012 photo, Joe Wasilewski works with a captured Nile crocodile, caught near his Homestead, Fla., home. State wildlife officials have given their agents a rare order to shoot to kill in the hunt for a young and potentially dangerous Nile crocodile loose near Miami. “They get big. They’re vicious. The animals are just more aggressive and they learn that humans are easy targets,” says Wasilewski, a reptile expert and veteran wrangler. The American croc “is a gentle animal, believe it or not. That’s their nature. They’re more fish eaters. They don’t consider humans a prey source,” says Wasilewski. (AP Photo/J Pat Carter)