Amazon River Dolphin: Apex Predator of the Flooded Forest

Top of the Food Chain

The Amazon river dolphin (Inia geoffrensis) is an apex predator in its freshwater habitat. It feeds on a wide variety of fish—piranhas, catfish, cichlids, tetras—as well as crustaceans and other invertebrates.

Using sophisticated echolocation (high‑frequency clicks), it navigates murky waters and locates prey with precision.

Conservation Challenges

Despite having no natural predators, the species faces:

• Overfishing depleting its food base.
• Mercury and chemical pollution from mining and agriculture.
• Habitat fragmentation from dams and deforestation.
• Climate change altering flood‑pulse dynamics.

Protecting the dolphin means safeguarding the entire Amazon basin ecosystem.