The dietary habits of Inia geoffrensis, commonly known as the pink river dolphin, are diverse and opportunistic. Their food intake encompasses a variety of freshwater species, reflecting the rich biodiversity of their Amazon and Orinoco river basin habitats. Fish, particularly bottom-dwelling types, constitute a significant portion of their nutritional intake. For instance, species like catfish, tetras, and piranhas are frequently consumed. Crustaceans, such as river crabs and shrimp, also form part of their nutritional requirements.
Understanding the food sources crucial for these dolphins is vital for conservation efforts. The health and abundance of their prey directly impact the dolphin population. Changes in river ecosystems due to deforestation, pollution, and dam construction can disrupt food webs, posing a threat to the long-term survival of these aquatic mammals. Historically, indigenous communities have recognized the importance of healthy river systems for both the dolphins and their own sustenance, viewing the species as indicators of river health.