Distinguishing characteristics: white lower jaw on right, gray on left. Blow readily visible-10 m(33') tall, straight column. Curved dorsal fin closer to tail. light grey with white belly, occasional blotches of orange/yellow, blaze or chevron extending from eye across back. Fin and blue whales have the deepest, loudest voices in the ocean, letting them communicate over great distances. Second largest living animal after the blue whale.