I have removed the audio from the Otters as there was lots of shutter clicking going on while I was recording. The (spoiler alert) Wolf footage has the audio on all except the last clip as the sound is the best part.

The footage of the Otter/s was captured with the 7D and 500/4.0L IS while the Wolf footage was captured with the use of telephoto converters (2X and 1.4X). The Wolf was a long way off and the atmospheric distortion is very obvious. The distance adds a cool element of delay on the audio... you'll see.