Hearing their breath catch in this video is the most beautiful thing. There's something so human about a visceral response.
It's funny to say human in that way, because I think most people would define the difference between humans and everything else in terms of our logical/cognitive abilities, not our involuntary physical reactions. And yet, that is exactly what we mean when we say something is human. Maybe because our physical humanity is perceived as universal, but our minds as unique, collections of choices that distance us one from another.