Wild Caribbean reef fish anywhere in the Caribbean. The final island to be featured is Trinidad, cut off from South America by rising sea levels 2,000 years ago. Its island fauna include many mainland species such as red howler monkeys, capuchins and scarlet ibis. Coral reefs, which thrive in the warm, shallow waters around Caribbean Islands, are the subject of the second programme. Hard corals are the reef-builders, and grow their tough external skeletons by extracting nutrients from algae growing within them. Time-lapse footage shows coral polyps emerging at night to trap drifting plankton. Marine life featured includes Caribbean reef squid, octopus
Maiden Island just off Maiden Island with only one survivor from the 11 crew members on board. Maiden Island Maiden Island is a small uninhabited island at the mouth of Oban Bay on the west coast of Scotland. Maiden Island lies just off the coast of mainland Scotland, west of Dunollie Castle and Camas Bàn. It is to the north of the narrow entrance to Oban Bay and about north of the much larger island of Kerrera. The passage is deep and large vessels such as the Caledonian MacBrayne ferry make regular use of this strait. The island reaches a height of