Difference between the blowhole of a bottlenose dolphin and the blowhole of a humpback whale?

What’s the main difference between the blowhole of a bottlenose dolphin and the blowhole of a humpback whale?
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We had quite a few correct answers to last week’s quiz, and our winner (chosen at random) is Rebecca Frost who correctly stated that it was a trick question: dolphins do not have bones in their dorsal fins, only fibrous tissue. Now, for this week’s quiz: what’s the main difference between the blowhole of a bottlenose dolphin and the blowhole of a humpback whale? Think you know the answer? Surf on over to thedolphnipod.com and click on Dolphin Quiz – leave your answer in the comments section. Winners will randomly be chosen from the correct answers, and will be announced on next week’s show.