Reef sharks and their nurseries

In most of the world's oceans, shark populations have already been modified by humans. As a result, it is difficult to study shark behavior and ecology under relatively pristine conditions. French Polynesia, on the other hand, stands as the world's largest shark sanctuary, and among the French Polynesians islands, Tetiaroa is especially conducive to shark research because it is pristine, accessible, and small enough to be studied as an entire ecosystem.