ROV

There are many cases where it is either impractical or inefficient for the aquarium to send divers into its large Open Sea tank to take care of a task. For example, if there is a Great White Shark in the tank, and staffers need to rescue a sick animal, or pick something up that's been dropped in, it can sometimes take too long to get three divers decked out in full chain mail suits.

Fortunately, the aquarium has this remote-operated vehicle (ROV), which can be sent under water to shoot live video, grab something that's fallen in, or even capture a sick -- or dead -- animal.