1. A newly identified species of river dolphin found nowhere else on Earth.

2. Animals like the Ganges river dolphin which is just down to a few left, and it is also critically endangered.

3. Pollution threatens not only humans, but also more than 140 fish species, 90 amphibian species and the endangered Ganges river dolphin.

4. 27 In 1972 the Government of Sind Province declared the river dolphin protected by law and prohibited its killing and trapping.

5. Here in the flooded forests of Brazil, the team are on the trail of a newly discovered species of river dolphin.

6. Two species of dolphin can be found in the delta: the Irrawaddy dolphin (Orcaella brevirostris) and the Ganges river dolphin (Platanista gangetica gangetica).