This is one of the most distinctive sharks in existence, and a fascinating creature to come across. The caudal fin, the one that is rear-most, is about half the length of this shark's entire body, which is one of its most iconic attributes. Unlike most sharks, the Zebra Shark has an almost human-like face, with a very small mouth. The juveniles of this species are dark brown with vertical yellow stripes while adults are a paler shade of brown with dark spots. This shark is sluggish and strictly nocturnal, so if you wish to come across them you must embark on a night-time dive.