Water Bobcat

The Water Bobcat (Lynx aquarius) is a subspecies of the cat family Felidae indigenous to Northwestern Ohio, and has adapted to survive predominantly aqueous environments, such as rivers, and lakes. Although mammals, they are sometimes called the "Alligators of the North" for their ability to float motionless at the surface of the water while waiting for unsuspecting prey.

I was reeling in a large walleye, and a damned Water Bobcat snatched it off my fishing line.