The marlin's shape helps it to swim fast. Look at it go! Whatever the shape the animals are - big or small, round or flat, fins or flippers - they're all at home under water. Take a trip under the ...

Its abundant golden hair frames a charismatic black face and covers its small body and tail ... These interesting animals are threatened, as are many of the forests in which they live.

They are covered in venom-filled nematocysts used to paralyze and kill fish and other small creatures. For humans, a man-of-war sting is excruciatingly painful, but rarely deadly. But beware ...