ghost sharks have long tapering bodies and incredibly large heads. their skin ranges in color from black to pale blue to brownish grey and is quite smooth. they have large eyes, oversized nostrils, and large, visible teeth, which give them a rabbit-like appearance, though within their mouths are three tooth plates.
ghost sharks have mineralized tooth plates. they use these teeth to crush mollusks and worms, making for an interesting diet.
ghost sharks primarily caught as bycatch. while their meat is edible, the majority of their commercial value comes from their livers, which contain an oil known as squalene that's used in a wide variety of cosmetic and pharmaceutical products.