They may not be cute like seals or colourful like clownfish but they play a crucial role in protecting the oceans.

UNESCO: Open Access to Scientific Information

Clownfish live happily amongst the tentacles of poisonous stinging sea anemones, a relative of the jellyfish, thanks to a protective layer of mucous.

BBC: Sting relief for summer swimmers

To find a way to prevent the stinging process jellyfish expert Dr Amit Lotan, and his molecular scientist wife Tamar, looked to the Clownfish.

BBC: Sting relief for summer swimmers

The reef has been decimated in parts by dynamite fishing, but you will still find a huge amount of underwater life, with a smorgasbord of cuttlefish, octopus, pygmy seahorse, scorpion fish, clownfish and giant green turtles.

BBC: Derawan Island and the Sangalaki Archipelago