The list of creatures that don't appear in the Isles of Scilly is almost as interesting as those that are present.

The isolation of Scilly means there are very few mammals to be found - no foxes, weasels, stoats or squirrels. This lack of predators is the reason why many other species thrive especially well, and why so many are extraordinarily bold and unafraid.

There are no Common shrews in Scilly, but there are large numbers of the much rarer Scilly shrew, which may have originally been a stowaway on a ship.