How Do Dolphins Breathe Underwater?

Answer

Dolphins require lungs as much as other humans and every other mammal. Unlike humans though Dolphins actually think about breathing, the breathing does not happen instinctively like other mammals.
Q&A Related to "How Do Dolphins Breathe Underwater?"
They don't. They have to surface to breathe.
http://wiki.answers.com/Q/How_do_dolphins_breathe_...
It varies w/ the type of dolphin. Bottlenose Dolphins can hold it
http://www.chacha.com/question/how-long-can-dolphi...
Water that is inhabited by fish contains oxygen that is dissolved into the water. However, the water contains only 1/20 the amount of oxygen in it that air does. Fish, then, need
http://www.ehow.com/how-does_4598615_fish-breathe-...
1. Get in the water and stand up. Ad. 2. Bring your hands around your back and grab the ledge behind you. (Under your shoulders. 3. Put your feet around your back and against the
http://www.wikihow.com/Do-the-Dolphin-Stroke-Under...
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