As some people already pointed out, it was kind of hard to keep up with all the characters being thrown in at the beginning, but once I kept up with who was who, some of them turned out to be really interesting; I actually would have liked to learn more about some of them, but since this is the first part of a series that's alright, I guess. The animals are amazing, of course. I really liked the way they interacted (minus the part where they suddenly discuss overpopulation and the decay of humanity out of nowhere for a minute, just to throw that comment in, it seems) and especially how the humans see their behaviour and conversations in contrast - very cute, and it made me think of my own cat more than once.