Deep sea divers and snorkelling enthusiasts ... dorsal fins and upper parts of the body, with the younger fish often being the most colourful (like most other types of fish).

Leafy Sea Dragon is a marine creature that looks like a floating plant. It has delicate leaf like appendages and can thrive ...

The ocean is an average of 3.2km deep. Humans know of about 245,000 marine species. The most common sea animals are those without a backbone, such as jellyfish and shrimp. There are thousands of ...