Called a Piglet Squid, this sea creature always looks cheerful thanks to what appears to be a huge grin.

About the size of a small orange, the squid - Latin name Helicocranchia pfefferi - can commonly be found in deepwater (greater than 100m) in most of the world's oceans.

But this cute chap is more distinctive than most thanks to pigments which dot its skin - making it seem like the happiest swimmer in the ocean.

Scientists gave it the name thanks to its tuft of eight arms and two tentacles on its 'head', as well as its habit of looking porky when inflated with water.