Into this seasonal sea, which remains for half the year, swims the Amazon river dolphin, or boto. Botos have the characteristic dolphin smile and, unlike their marine cousins, bulbous foreheads ...

The amazon river dolphin is also known as the boto or pink river dolphin. It falls under the species of toothed whales who are different to marine dolphins. These pink river dolphins are first ...

You might not be that impressed to receive a clump of grass or branches on a first date, but a boto dolphin might think differently. A new study suggests that these Amazonian dolphins wave bits of ...

Eighty-eight dead dolphins have been retrieved from the Bay of Sepetiba, about 45 miles from Rio de Janeiro, in the last 18 days, Leonardo Flach, a biologist and the chief coordinator of the Boto ...