Highly Venomous Sea Snakes Hunt in Huge Group | 20 Years of Planet Earth | BBC Earth (Level 1)

In the ocean near Indonesia, animals work together to find food. Banded sea snakes live here. They are slow swimmers. They cannot catch fast fish easily. Instead, they look for small fish hiding in the rocks. These snakes have a strong bite that stops other fish from moving. The snakes do not hunt alone. Big fish, like goatfish, hunt with them. The big fish scare the small fish into the rocks. Then, the snakes can catch them. If the small fish swim away from the snakes, the big fish eat them. There is nowhere for the small fish to hide. Many snakes and big fish travel together in a large group. People only see this amazing teamwork in very quiet, clean reefs. Sadly, most coral reefs are not perfectly clean anymore. Only a few places like this are left in the world.