This is the 25th anniversary of Discovery Channel’s “Shark Week.” The popular show has become a viewing frenzy for fans who have an up-close look at one of the most feared animals in their natural habitat. From the comfort of living rooms, 20+ million viewers peer into the daily lives of sharks. There are more than 400 types of sharks of all sizes and colors. However, when we think of sharks, typically our next thought is what they eat.