I just saw Finding Nemo - nice movie, great DVD. There's an angler fish in it, the fish that's all teeth and a little luminescent lure out in front.
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Another unusual adaptation in anglerfish is their sexual dimorphism. The males are very small in comparison with the females, and live as permanent parasites on the female. The male attaches himself, by biting, to the body of the female. His mouth fuses with her skin, and the bloodstreams of the two fishes become connected. The male is now totally dependent on the female for nourishment. In fact, the male begins to degenerate. His eyes grow smaller and he eventually loses them. His internal organs disappear.The male becomes simply a source of sperm.
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In fact, when deep-sea anglers were first brought up in trawls they puzzled scientists because they were all females. Then someone noticed small "growths" on the female that turned out to be males. When a tiny male meets a female he bits into her flesh and literally fuses with her body. Like the linking together of web sites on the Internet, the two blood supplies also fuse together so that the male obtains nutrients and oxygen from the female. Without any need for most of his organ systems, such as eyes and digestive organs, the male's body degenerates into essentially a pair of sperm-producing testicles. Thus the female essentially becomes a hermaphrodite with up to six or more of these tiny male parasites attached to various parts of her body. Although functionally bisexual, the eggs and sperm come from genetically distinct parents, thus providing vital genetic variability through meiosis and genetic recombination. As a functional hermaphrodite she can have sex any time or place, without worrying about meeting a male in the dark abyss of the ocean. Clinging to her body like minute, blood-sucking parasites, the males have little interaction with the female, except to fertilize her eggs with sperm.
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MARVEL OF GOD'S CREATION #6....She is dead and dead fish can not evolve....The only possibility is that God created the Angler fish with all the fully-functional equipment it needed to survive at great depths....A compound called Luciferin is oxidized with the help of an enzyme scientists named Luciferase....God has made His creation to display His glory and power.... Soon the tissues of the female grow into and attach to the mouth tissues of the male, and the female drops to the bottom of the ocean carrying her parasite male with her not to separate "til death do they part"....Evolution has no answers....God says that as we study His creation, it should cause our thoughts to focus on the Creator and to give Him thanks and honor Him as God (Romans 1)....For a super treatment of the Angler fish and other highly specialized animals read: The Natural Limits to Biological Change....
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its flesh is watery, its bones are very light (barely coated by a thin layer of calcium carbonate) and it can barely swim (there’s not much of a tail).
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Its appearance has earned it a second name of "common black devil".