Ask someone to pin Madagascar on a map and there’s a slim chance they’ll manage to locate it.  But, lying some 400km off the east coast of Africa, it is the Indian Ocean’s largest island. Having broken free from the Continent many millions of years ago, it evolved in its own individual way and is one of the most biodiverse countries with, astonishingly, around 80% of its flora and fauna (of which there are around 250,000 species) found nowhere else on earth.