Scientists have found a new species of river dolphin that's been living in Brazil's Araguaia River — the first such discovery in nearly 100 years — and their research may settle some long-standing ...

This team of six scientists are concerned that the Boto-do-Araguaia will suffer the same fate as the Baiji dolphin, a river dolphin discovered in China in 1918 and proclaimed extinct in 2006.

Scientists in Brazil have discovered the first new species of river dolphin since 1918. The new species known as, Inia araguaiaensis, can mostly be found in a 932 mile stretch of the Araguaia ...

Researchers working in Brazil have discovered a new species of river dolphin in the Araguaia river basin, according to the journal PLOS ONE.

The scientists say there are some differences in the number of teeth and they suspect the Araguaia river species is smaller, but most of the clues to their separate nature were found in their genes.

SÃO PAULO — Scientists have made the first discovery in 100 years of a new river dolphin species. The discovery of the “Inia araguaiaensis” in the waters of the Araguaia river in Brazil’s ...

Despite being more around for than a million years the Araguaia river dolphins had never been filmed before until the Planet Earth II crew arrived in Brazil ...

On federal maps, Araguaia National Park still encompasses the northern third of Bananal Island, a 200-mile long river island in north central Brazil that is shaped like a crude arrowhead pointing ...

The first week on the upper Araguaia River passed like an idyll. Butterflies lined the shore; pirarucu, some of the largest freshwater fish in the world swam alongside the boat.

Scientists have named the new breed, which is only the fifth river dolphin species in the world, ‘Araguaia’, after the Brazilian river where it was found.