2.6 The Galapagos Islands are characterized by
unspoilt surroundings leading to conditions of exceptional environmental
purity as compared to most of the world's marine areas. The Archipelago
has been recognized as a unique group of oceanic islands which still
retains most of its terrestrial and marine biodiversity, thanks to
a relatively low-key human presence. The tendency observed in the
rest of the world is for biological richness to decrease rapidly as
human activities increase.