Photos: Robot subs vie for top honors

The competition isn't limited to teams from the United States. Four universities from Canada have entered, as have the Delhi College of Engineering and Japan's Kyushu Institute of Technology. There's also a team from Amador Valley High School in the San Francisco Bay Area.

This robot sub is the competitor for the Arise team from the University of Ottawa. (Arise stands for Advanced Robotics Innovations Society in Engineering.)

Photo by Arise/ University of Ottawa