I was surprised and delighted to see one morning, as I was driving on a road near Bodfan, a hare running along the road.
Fortunately, all the motorists slowed until it was able to leap through a fence to safety in a field. It is possibly some ten years since I last saw a hare. I hope that this is a sign that they are becoming more plentiful in this area.
See this website for more about hares: http://www.hare-preservation-trust.co.uk/index.php
This site will give the background to Anglesey's unique geology.
This site will give you walks to do
Finally, if you want to know what cetaceans have been spotted round Anglesey look here