Britain's Overseas Territories from the Caribbean to the Falkland Islands contain a treasure trove of wildlife. A new report from the RSPB reveals that 94% of unique UK species live beyond our shores. But many of those astonishing creatures are at great threat from tourist development and invasive species.

To discover whether we are doing enough to protect our secret garden of species Tom Heap visits the Turks and Caicos Islands, 150 miles to the east of Cuba.