Three of the four species of river dolphins live in fresh water rivers.

However, some species, such as the beaked whales and the river dolphins, can be almost solitary.

At the restaurant, teams had to feed six fish to pink river dolphins to receive their next clue.

The largest river dolphins usually grow up to 2.4 meters (8 feet) long, but most of the animals are smaller.

As China developed economically, pressure on the river dolphin grew significantly.

During the 1970s, China recognized the precarious state of the river dolphin.

He lives an idyllic existence, swimming with the river dolphins.

This aquarium has the only trained tamed river dolphins in the world.

This river dolphin is the national aquatic animal of India.

Tucuxis have been observed to feed with other river dolphins.