Brian McKinney and Sam Vonderheide were hiking at California's Mount Whitney. On the way, they spotted what they thought was a cougar. The mountain lion was between them and their campsite, so they continued on the trail. As they rounded the corner, they wondered where the cat was. The cougar knew where the men were every second. Predators are like that. McKinney and Vonderheide ended up backing away, and stayed at a different campsite. Good move. This cat is not only pointy on five ends, but he's 135 pounds of ripped muscle. Read the full story of the encounter at National Geographic.