But a whale??? Wow.
Just to help, they've made sound graphs of people saying "Hello" and "Goodbye" and counting to three. Then they make a sound graph of the whale doing the same thing. The whale's speech is sometimes much higher pitch and screechier. (I'm a writer so I can make up words like screechier.) And sometimes it's low and gravely. But the sound graph, adjusted for pitch, is very similar.
Watch this youtube video.
https://www.youtube.com/watch?v=hqB1jRVw7Bw
http://www.newsweek.com/watch-killer-whales-learned-say-hello-bye-bye-through-blowholes-795776
If you doubt just how amazing this is, consider how well people say hello and goodbye in whale language.
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