On the island of Bimini in the Bahamas, Dr. Perry Gilbert, Professor of Zoology at Cornell adds a huge chunk of Marlin to a test pen in which a temporarily blinded shark will be observed as it is attracted to the food. It’s one of the experiments Dr. Gilbert conducted to investigate the ‘Attack Pattern of Sharks’ by learning more about their sensory mechanisms. Using large & small sharks he found that they have more sensitive vision than was previously believed, and this enables the shark to distinguish between light & dark objects in murky water. This is an integral part of the animal’s hunter-killer pattern of feeding.

Dr. Gilbert shows how a shark repellent was developed. His tests document how it affects a shark under certain conditions and fails under others.

The study of the anatomy of sharks indicated they have a highly developed visual system that was tested with living sharks attacking food. This is a must see film!