Blue Whales? How do they swim?

Question

They're huge! How do they swim?

Answer 1

they have huge tail fins. so they push themselves with a lot of force. they also have ballist in the form of water/air pouches so they don't sink.

Answer 2

Blue whales have an organ called a swim bladder that is filled with oil. This oil adjusts the whales buoyancy and the fins haul it through the water.

Answer 3

Did you see that awesome clip on Yahoo video today about them?

http://video.yahoo.com/watch/2354196/736...

Answer 4

with their tails

Answer 5

very fast actually!