Hurricanes move massive amounts of sediment from shallow reefs to deep oceans, affecting ecosystems long-term.

Socotra Archipelago, in the northwest Indian Ocean near the Gulf of Aden ... 90% of its reptile species and 95% of its land snail species do not occur anywhere else in the world. The site also ...

Cold air sinks at the North Pole, before flowing south at the surface. Here it is warmed by contact with land/ocean around 60º north, where it rises. At the Equator there is an area of low ...