Sharks, often referred to by nicknames such as pet shark or baby shark, are fascinating marine creatures with diverse species, each with unique characteristics. Originating from ancient seas, sharks belong to a group of fish known for their cartilaginous skeletons rather than bones. Physically, they vary widely in size and shape, from the small bamboo sharks to the massive whale shark, the largest fish in the sea. Their tough skin, multiple rows of sharp teeth, and streamlined bodies make them effective predators. Sharks exhibit various temperaments; while many are solitary hunters, some species like hammerheads are more social. Despite their fearsome reputation, many sharks are not aggressive towards humans. Suitability for captivity varies, with species like bamboo and zebra sharks being more adaptable as pet sharks, often bred in aquariums for conservation. However, sharks generally require large tanks, specific diets, and expert care, making them unsuitable for casual home aquariums. In the UK market, interest in pet sharks for sale is niche, primarily among enthusiasts aware of their specialised needs. When considering a shark as a pet, understanding their natural behaviour and care requirements is crucial to ensuring their well-being and promoting conservation efforts.