Three images are cycling in sequence here. All three images show the large underwater viewing window into the Steller sea lion habitat at the Alaska Sea Life Center at Seward, Alaska. The window measures about 3 meters or 9 feet tall by 5 meters or 15 feet wide. Through the window the sea life center visitors can look into what is called the sea lion habitat, a very large sea water tank with a small rocky island in the middle. On the left hand side of the window, inside the habitat, a plastic tube is protruding into the tank. This tube is one of the fish feeder tubes. They are straight tubes of plastic pipe about 10 centimeter or 4 inches in diameter, and are capped by a small trap door at the lower opening. An operator standing topside can open the trap door via a handle, and thus release the fish that was previously dropped down the tube. At the lower end of the tube a white light target sits right next to the fish release trap door. It is used for training purposes. When the target is lit, the sea lions know that fish release from the trap door is imminent. Many spectators sit near the window and watch the experiments. Two young children are lying on their belly, chins resting in their hands, watching the experiments intently. Leslie, the student conducting the experiment, sits to the left side of the big window into the habitat. She watches a video monitor that shows the images of four black and white security cameras simultaneously. One camera is positioned to show each of the three fish feeder tube trap doors, and the fourth is positioned to show the surface of the water tank. The image from the monitor is recorded on a video tape recorder for later analysis. Leslie also has a small console with push buttons to operate the light targets. She uses a radio to talk to the feeder operators. On her right, one of her intern assistants is sitting directly in front of the large window and takes notes. The three alternating images show a Steller sea lion approaching the feeder tube and target.