The yellow boxfish is quite a hard one to spot despite its unique shape and bright colour. This is because of their size being about the same as a pea at its smallest. Certain types can, however, grow as big as a football.
Like most other brightly coloured animals, its colour scheme is meant to warn off other animals as this little critter is highly poisonous and can release toxic proteins from its skin if threatened. This protein is so poisonous that it has the potential to kill all animals around it and wipe out an entire aquarium should it find itself unlucky enough to be in one. So don't buy them!
Its habitat is always amongst rocks and coral and its diet mainly consists of algae, worms and small fish. They also enjoy shrimp and crab too!
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Odd fact: Mercedes-Benz designed a concept car based on the boxfish due to its aerodynamic design and skeletal strength - Plenty of room in the boot