Blighted creatures; any regions where the Blight has been or has suffered prolonged Darkspawn activity, Tavin is researching the papers or has visited to look into what might have happened to the animals. Has visited Orzammar as part of this.
Dragons; generally due to Archdemons looking like big dragons and his fascination with dragons and the whole Nevarran dragon thing.
Relationships between specific animals; nugs etc it's a whole thing.
elsewhere;
Dragons; generally due to Archdemons looking like big dragons and his fascination with dragons and the whole Nevarran dragon thing.
Relationships between specific animals; nugs etc it's a whole thing.