<p dir="ltr"><strong>On August 25, photographer Paul Donahue got a call: A large male <a href="http://animals.nationalgeographic.com/animals/mammals/jaguar/">jaguar</a> had been spotted on the hunt in central <a href="http://travel.nationalgeographic.com/travel/countries/brazil-guide/">Brazil</a>'s Tres Irmãos River.</strong></p><p><strong></strong><strong></strong></p><p dir="ltr">Donahue, who tracks jaguar sightings for ecotourism operator Southwild in <a href="http://maps.nationalgeographic.com/map-machine#s=r&amp;c=-12.75001582770837,%20-55.92909049987793&amp;z=5">Mato Grosso (map)</a>, arrived at the scene to find an animal named Mick Jaguar hidden in thick grass, stalking a nearby group of <a href="http://www.iucnredlist.org/details/46586/0">caiman</a>, a crocodile relative native to South America (pictured).</p><p><strong></strong></p><p dir="ltr">"Over the next 30 to 40 minutes we watched the jaguar very slowly slink along in the direction of the yacaré," he wrote in his field notes. (<a href="http://ngm.nationalgeographic.com/2009/03/jaguars/white-text">Read "Path of the Jaguars" in <em>National Geographic</em> magazine</a>.)</p><p><strong></strong></p><p dir="ltr">The largest of South America's cats, jaguars are good swimmers and regularly prey on fish, turtles, and caimans. They also eat larger animals such as deer, peccaries, capybaras, and tapirs.</p><p dir="ltr"><em>—Christine Dell'Amore</em></p>