Fish characteristic prominently in artwork and literature, in videos like Obtaining Nemo and textbooks such as The Aged Male and The ocean. Large fish, notably sharks, have routinely been the subject of horror videos and thrillers, most notably the novel Jaws, which spawned a series of films of the same title that subsequently encouraged related fi

Like other animals, fish are afflicted by health conditions and parasites. To prevent condition they have got a number of defenses. Non-unique defenses include things like the pores and skin and scales, together with the mucus layer secreted via the epidermis that traps and inhibits the growth of microorganisms. If pathogens breach these defenses,