1) Simple yet smart rodent found in the Canadian wilderness, known for its buck-teeth, waffle tail and its ability to build dams;
2) Canada's national animal - noble little dude that he is;
3) Team of ultimate players in Vancouver Canada, aka. "Screaming Beavers Ultimate Club". They known for their quick wit, trash talk, vulgar songs, made-up for with their mediocre play and great sportsmanship.
4) "castors" is French for "beavers", after all it is a bilingual country.
Hey, those beavers sure can throw the disc!