Mostly bored and curious to see what others would say, but I chose the North American beaver as the species for my main because I really like beavers and because of The Angry Beavers cartoon.
I cannot say I remember the Christmas episode. I'll definitely have to look that one up. But the Halloween episode definitely spoke to me because of how chaotic it is.
The message was essentially good things come in small packages. Can't say I remember the Halloween one, maybe I'll get stoned and check the show out again, haven't watched it since I was a kid.