The video explores the diversity of fish, highlighting their vast number of species and their classification into different groups. It explains the concepts of shoaling and schooling, detailing how fish form groups for social reasons and coordinated movement. The video discusses the role of forage fish in the ecosystem and their strategies to avoid predators. It also covers the benefits of schooling, such as increased hydrodynamic efficiency and predator avoidance. Finally, the video delves into fish reproduction, lifecycle, and the challenges faced by young fish in the wild.

Explain the concept of the dilution effect in fish schools.

What are the primary predator-avoidance behaviors exhibited by schooling fish?

How do schooling fish communicate their intentions to each other?