... although they are small, some river dolphins have powerful blows when they surface? The Boto, a 6-8 foot (1.8-2.5 meter) long river dolphin in South America, blows spray as much as 6.5 feet (2 meters) into the air. This is nearly twice as high as the blow of the Pilot Whale, a cetacean nearly three times as long and twenty times heavier than the Boto.
