http://farm4.static.flickr.com/3476/3400960070_bd8a687045.jpg Photo by Scott Ableman
Many remote islands around the world have some of the most unique flora and fauna in the world. Some have species of plants and animals that are not found anywhere else and which have evolved in a specialized way. Because these islands provide a shelter from the fierce competition that species face on the mainland, species will develop that take advantage of these rare conditions. As a legacy of a unique evolutionary history, these ecosystems are irreplaceable treasures of nature. This list features some of the world’s most unique island ecosystems.
http://farm1.static.flickr.com/81/243851850_8420249898.jpg Photo by creight0n
A tidal island is a piece of land that is connected to the mainland at low tide at which time they can be reached on foot. At high tide however it is completely cut off from the mainland and becomes a real island. Tidal islands are sometimes connected to the mainland by a man-made causeway allowing easy access for visitors wishing to cross over but even these can get submerged by the sea. So always check the tide times before you visit, or get ready to swim back.