Rabbits have been in Scilly for a long time and the first historical record of a rabbit in Britain was from the Isles of Scilly in 1176.
Two species of mice are found in Scilly; the house mouse and wood mouse.
Wood mouse, Paul Adams
The lesser white-toothed shrew is not found on the British mainland.
Young Scilly shrew, Paul Semmens
Despite not having the best of reputations, rats are incredibly intelligent allowing them to survive in a variety of environments.
Brown rat, Liz Askins
Introduced to St Mary's in the 1980's, without natural predators hedgehogs have rapidly increased in number.
They can be seen feeding at insect rich hot spots all around the islands.
Common Pipistrelle bat, David Mawer
The Isles of Scilly are visited by a number of marine mammals and is a stronghold for Grey seals.
Common dolphins, Robin Mawer
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.