I have noticed that nearly all newspapers, local and national, carried a piece in september on sightings during the last 5/6 years of exotic/out of place animals(including sharks). I was wondering how this information was gathered and if there is any other official source of such like statistics? Can anyone help? I am also interested in the possible conclusions that these figures help draw. For example, are more sharks being sighted, are there more sharks or just more people looking and reporting? As for land animals, how does the sightings figure correlate with figures on licensing/ownership/release and again is this figure just a reflection on the increased awareness of big cats and therefore a legitimacy in reporting them?