This is even more interesting... made me LOL...
(A tongue-in cheek rebuttal to 'Mermaid Anatomy')In the aforementioned article 'Mermaid Anatomy', the author makes several erroneous statements about merpeople, many of which are pure conjecture, some of which are outright incorrect. In this article I hope to set the record straight. We will look at 'Mermaid Anatomy' section by section.
In the introduction, the author states that "mermaids are humans from the waist up, but fishes from the waist down." This is incorrect. Merpeople are not human or fish at all. They are mammals that resemble human/fish combinations. They are warm blooded creatures, fish are not. (In the episode 'Charmed', Ariel chides Flounder, commenting that he is a fish, the water temperature doesn't bother him, while she is getting cold.)
Also, mammals, all mammals have hair - fish do not. Thirdly, mammals are called mammals because the female of the species have mammary glands. (Anyone who has seen Ariel can testify that she very definitely has mammary glands.)
The statement could be made that mammals do not have scales, however, it is possible that they could. Fish are not the only animals to have scales, lizards have scales, some amphibians have scales and even humans can develop scale like formations. It is also possible that they are not scales at all, they may be patterns that resemble scales.
In 'How mermaids breathe' it is stated that mermaids have gills, similar to fishes. Again, untrue. They have organs in their chest that can operate as a lung or a gill, depending on whether they are in or out of the water. The organ expands and contracts, exactly like a lung, yet has the ability to extract oxygen from the water. This allows merpeople to 'breathe' water the same way they breathe air, by filling and evacuating the chest cavity with an in-out motion. (It has been seen in more than one episode, Ariel taking a deep inhale of 'water' because she is out of breath.) This organ is also needed to operate the larynx, which will be discussed next.
The author states that '(gills) are the only aspect of mermaids upper bodies that differ from humans.' Yet, the merperson's larynx is totally different from the human larynx. The human larynx cannot operate under water, it cannot be made to vibrate from water pressure, yet the merperson's larynx operates equally well using water or air. (Ariel's voice sounds exactly the same under water as it does outside of water.)
The lenses of merpeople's eyes are also different, able to correct focus for use both above and under water. Human eyes cannot do this. (Open your eyes underwater and see what I mean. It's no wonder Eric missed when he threw the harpoon at the Sea Witch... then again, maybe he's a lousy shot.)
The subject of 'Mermaid Tails' being fish tails has already been disproved.
'How mermaids reproduce' is reasonably accurate, insofar as live birth vs. hatching from eggs. However, the statement that '(the) clitoris (which is the same color as the tail) is slightly below the urogenital opening, is a falsehood, simply because mermaids do not have a clitoris. That function is provided by a different organ. Merpeople have, surrounding the pelvis area, a wrap of fin-like, translucent skin called the 'skirt'. In the female there is an area in the front of the body, just at the base of the skirt that is extremely sensitive, and reproduces the effect of a human clitoris.
The statement is made that the male's penis is 'almost as small as the human female clitoris and the same color as the tail, it is hardly visible. The author then goes on to say that 'this is the only plausible explanation as to why no one has ever seen a penis on any of the male mermaids.' Firstly, the term is 'merman or mermen' not 'male mermaids.' Secondly there is a very plausible reason as to why we haven't seen a penis on a merman... they have internal genitalia, only extending when used for sexual intercourse. Many mammals have internal genitalia, especially underwater dwelling mammals; i.e. whales and dolphins. During sexual excitement, the penis extends out from an opening in the skin. This opening, like the female's vagina, is well hidden, making it difficult to see. The merman penis varies in size, just like the human penis. (Note: Being able to swim really fast, lift heavy weights, or making a lot of noise peeling out on a squidcycle are common ways to 'prove' you have a bigger penis than the other mermen.)
I hope that this clears up any confusion. Please note that all research done so far has been on a theoretical level only. If Ariel is reading this, she has an open invitation to assist me in more practical, hands on research. Strictly for scientific accuracy, you understand. I'll even pay for dinner and a movie.