What are the top facts about the ocean? While much is known about the ocean, a large part of it remains unknown. Here are fun facts about it for people of all ages.

The ocean is vast and on average about 4,000 metres deep. It contains 1.3 billion cubic kilometres of water – that’s 97% of all the water on the surface of the Earth. [1] Home to over 240,000 known ...

Turns out, there's more to the shark than sharp teeth and gills. Read on to learn about these misread sea dwellers.

Discover interesting facts about where sharks live ... Where they live: In every ocean around the globe. How long they've been around: 450 million years. How big they are: Smaller than a human ...

Despite its isolation, the Mariana Trench is tainted by pollution, with microplastics found even in its remote depths, ...

Over time, that name morphed into "killer whales." Scientists don't know whether orcas kill for fun. The marine mammals do some things, like killing and tossing dead porpoises in the air ...

James Maclaine, a curator at the Natural History Museum, shows us some of the incredible creatures that are found in the deepest depths of our oceans ... for more deep sea facts, on until ...

So take care of me, please, because I'm your home. Here are some more facts about oceans in these BBC Bitesize and BBC Teach guides. Learn how big the oceans are and where they are located with ...