Especially the spine. If you had shown me a portion of the video with that thing moving as such, I would have believed it to be some leviathan.

Which brings us to the video itself - horrible. Presumably the original sound was recorded, because we hear it under the music. Just let us hear the sound! The people watching this video are people who appreciate nature, not people who need a dramatic soundtrack to be entertained.

And what is with changing the speed of the video every 60 seconds? Either show it at real speed, or speed it up, but not both intermittently! At first I thought there was an issue with the video playback hanging.

I would absolutely love to watch the original, unedited source.