Would sharks even count as furries? I've never seen a furry shark at all before.
Also, I think the reason why people don't choose that much domestic dogs is because they're pretty tame compared to animals like wolves, foxes, coyotes or dingoes.
Hey, speaking of dingoes, how come no-one has chosen a dingo as their fursona at all? Dingoes are basically what I call "the wolves of daylight". The lack of them kinda surprises me.