Similar to the wallabies that used to be found near the town of Leek in central England. My mum worked in the police station there, and from time to time some shocked motorist would drop in and tell her that he'd just run over a kangaroo. Unfortunately it's not clear that there are any left.
Well the point of Sumo is to win by forcing your opponent to the floor or out of the ring; you get no points for being the chubbiest. But generally no, sumo wrestlers aren't *just* fat; underneath the fat, which is used as a tactical advantage, there is generally someone built like Chiyonofuji. I certainly wouldn't wish to call him fat to his face, even now.
"I will gouge out your eyeballs and **** the sockets if you don't change me now, you worthless piece of ****! Now stop staring and wipe my a**, you ******* waste of oxygen!"
I've done something similar to learn the names of a large group. The first person says their name and a fact about them, then each successive person repeats what's gone so far plus their own name/fact:
"My name's Dave and I like gerbils." "His name's Dave and he likes gerbils. My name's Tara and I wear hats." "His name's Dave and he likes gerbils. Her name's Tara and she wears hats. My name's Tony and I self-flagellate"
It's rather worrying that they're conducting a mimic battle. A mock battle is presumably good practice, but a war against mimics, animals that pretend to be a different animal, seems a little unfair, especially using top-notch camouflage like this.
"My name's Dave and I like gerbils."
"His name's Dave and he likes gerbils. My name's Tara and I wear hats."
"His name's Dave and he likes gerbils. Her name's Tara and she wears hats. My name's Tony and I self-flagellate"
and so on.
http://www.hrc.utexas.edu/exhibitions/permanent/wfp/