They make up the majority of the surface of the Earth, but how much do you know about the world’s oceans and seas? You may think you know your Atlantic Ocean from your Arabian Sea, but do you know ...

The oceans cover over 70% of the Earth’s surface. The marine ecosystem is the largest and most abundant in the world. But most of the ocean is permanently dark and incredibly difficult to observe. As ...

Did you know that just like on land, there are forests under the sea? There are also underwater lakes of highly dense saltwater in some oceans. There is also a dedicated day to celebrate oceans. World ...

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When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Dave Fleetham/Design Pics Editorial/Universal Images Group via Getty Images Sharks are ...