Dinosaur Turtles Living Among Us

The alligator snapping turtle is the largest freshwater turtle in North America, and because of its unique spiked shell, it's known as the "dinosaur of the turtle world." Males average 26 inches long and weigh 175 pounds. 
 

This particular turtle can be found in rivers, canals and lakes, and it can stay submerged for 40 to 50 minutes at a time. Their unique tongue has a bright-red, worm-shaped piece of flesh on it that attracts prey to the motionless turtle at the river bottom.

Bonus Fact: A 403-pound alligator snapping turtle was supposedly found in the Neosho River in Kansas in 1937.